100231311131 has 12 divisors (see below), whose sum is σ = 118364440176. Its totient is φ = 83141174160.

The previous prime is 100231311127. The next prime is 100231311151. The reversal of 100231311131 is 131113132001.

It is not a de Polignac number, because 100231311131 - 2² = 100231311127 is a prime.

It is a super-2 number, since 2×100231311131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100231311151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7443200 + ... + 7456653.

It is an arithmetic number, because the mean of its divisors is an integer number (9863703348).

Almost surely, 2^100231311131 is an apocalyptic number.

100231311131 is a deficient number, since it is larger than the sum of its proper divisors (18133129045).

100231311131 is an equidigital number, since it uses as much as digits as its factorization.

100231311131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14899922 (or 14899891 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 100231311131 its reverse (131113132001), we get a palindrome (231344443132).

The spelling of 100231311131 in words is "one hundred billion, two hundred thirty-one million, three hundred eleven thousand, one hundred thirty-one".