231310312013332 has 24 divisors (see below), whose sum is σ = 418198805626112. Its totient is φ = 111831151824000.

The previous prime is 231310312013257. The next prime is 231310312013353. The reversal of 231310312013332 is 233310213013132.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 231310312013332.

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, 776456298 + ... + 776754145.

Almost surely, 2^{231310312013332} is an apocalyptic number.

It is an amenable number.

231310312013332 is a deficient number, since it is larger than the sum of its proper divisors (186888493612780).

231310312013332 is a wasteful number, since it uses less digits than its factorization.

231310312013332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1553211679 (or 1553211677 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 231310312013332 its reverse (233310213013132), we get a palindrome (464620525026464).

The spelling of 231310312013332 in words is "two hundred thirty-one trillion, three hundred ten billion, three hundred twelve million, thirteen thousand, three hundred thirty-two".