231311130232 has 32 divisors (see below), whose sum is σ = 533794917600. Its totient is φ = 91507699584.

The previous prime is 231311130227. The next prime is 231311130251. The reversal of 231311130232 is 232031113132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158866807 + ... + 158868262.

It is an arithmetic number, because the mean of its divisors is an integer number (16681091175).

Almost surely, 2^231311130232 is an apocalyptic number.

It is an amenable number.

231311130232 is an abundant number, since it is smaller than the sum of its proper divisors (302483787368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231311130232 is a wasteful number, since it uses less digits than its factorization.

231311130232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317735095 (or 317735091 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 231311130232 its reverse (232031113132), we get a palindrome (463342243364).

The spelling of 231311130232 in words is "two hundred thirty-one billion, three hundred eleven million, one hundred thirty thousand, two hundred thirty-two".