The Number

1321

One Thousand Three Hundred and Twenty-One

Nearby Numbers

Positive, nonzero integers within three units

1318
One Thousand Three Hundred and Eightteen
1319
One Thousand Three Hundred and Nineteen
1320
One Thousand Three Hundred and Twenty
1322
One Thousand Three Hundred and Twenty-Two
1323
One Thousand Three Hundred and Twenty-Three
1324
One Thousand Three Hundred and Twenty-Four

Scientific Notation

Scientific notation expresses a quantity as the product of its significand with 10 raised to an integer exponent.

1.321e3

Reciprocal

A number multiplied with its reciprocal is one.

0.000757002271006813

The reciprocal of 1321.

Palindrome?

A numerical palindrome has the same value when all of its digits are reversed.

The number 1321 is not a palindrome.

A Prime Number

A prime number is a positive integer that is divisible only by itself and one.

One thousand three hundred and twenty-one is the 216th prime number.   See primes in Base 10 Decimal

Not A Composite

Composites have more than just these two factors.

One Thousand Three Hundred and Twenty-One is not a composite number because it has exactly two factors: One and One Thousand Three Hundred and Twenty-One

Prime Factors

The prime factors of a positive integer are the integers that divide it exactly and are also prime.

The number one thousand three hundred and twenty-one has the following 1 prime factor:

1321
One Thousand Three Hundred and Twenty-One

Prime Factorization

The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities

13211 = 1321

Base Conversions

The number one thousand three hundred and twenty-one in 35 different bases