100311313231 has 2 divisors, whose sum is σ = 100311313232. Its totient is φ = 100311313230.

The previous prime is 100311313199. The next prime is 100311313303. The reversal of 100311313231 is 132313113001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100311313231 - 2⁵ = 100311313199 is a prime.

It is a super-2 number, since 2×100311313231² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100311313199 and 100311313208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100311319231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50155656615 + 50155656616.

It is an arithmetic number, because the mean of its divisors is an integer number (50155656616).

Almost surely, 2^100311313231 is an apocalyptic number.

100311313231 is a deficient number, since it is larger than the sum of its proper divisors (1).

100311313231 is an equidigital number, since it uses as much as digits as its factorization.

100311313231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 100311313231 its reverse (132313113001), we get a palindrome (232624426232).

The spelling of 100311313231 in words is "one hundred billion, three hundred eleven million, three hundred thirteen thousand, two hundred thirty-one".