The Number
1231
One Thousand Two Hundred and Thirty-One
In Base 11 Undecimal Is
a1a11
The numbers with a 11 subscript use Base 11 Undecimal notation.
For more familiar numbers: See One Thousand Two Hundred and Thirty-One in Base 10 Decimal
Nearby Numbers
Positive, nonzero integers within three units
Scientific Notation
Scientific notation expresses a quantity as the product of its significand with 10 raised to an integer exponent.
1.231e3
Reciprocal
A number multiplied with its reciprocal is one.
0.00109913a39084a93611
The reciprocal of 1231 in Base 11 Undecimal.
Palindrome?
A numerical palindrome has the same value when all of its digits are reversed.
The number a1a11 is a palindrome.
A Prime Number
A prime number is a positive integer that is divisible only by itself and one.
One thousand two hundred and thirty-one is the 202nd prime number. See primes in Base 11 Undecimal
Not A Composite
Composites have more than just these two factors.
One Thousand Two Hundred and Thirty-One is not a composite number because it has exactly two factors: One and One Thousand Two Hundred and Thirty-One
Prime Factors
The number one thousand two hundred and thirty-one has the following 1 prime factor:
Prime Factorization
The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities
a1a111
= a1a11
Base Conversions
The number one thousand two hundred and thirty-one in 35 different bases