100313031231 has 64 divisors (see below), whose sum is σ = 183503232000. Its totient is φ = 53949780864.

The previous prime is 100313031209. The next prime is 100313031241. The reversal of 100313031231 is 132130313001.

It is a happy number.

100313031231 is a `hidden beast` number, since 10 + 0 + 313 + 0 + 312 + 31 = 666.

It is not a de Polignac number, because 100313031231 - 2¹¹ = 100313029183 is a prime.

It is a super-2 number, since 2×100313031231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100313031241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 161145 + ... + 476018.

It is an arithmetic number, because the mean of its divisors is an integer number (2867238000).

Almost surely, 2^100313031231 is an apocalyptic number.

100313031231 is a deficient number, since it is larger than the sum of its proper divisors (83190200769).

100313031231 is an equidigital number, since it uses as much as digits as its factorization.

100313031231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637210 (or 637190 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 100313031231 its reverse (132130313001), we get a palindrome (232443344232).

The spelling of 100313031231 in words is "one hundred billion, three hundred thirteen million, thirty-one thousand, two hundred thirty-one".