231310331312 has 20 divisors (see below), whose sum is σ = 460276302336. Its totient is φ = 112529350080.

The previous prime is 231310331303. The next prime is 231310331339. The reversal of 231310331312 is 213133013132.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 195362864 + ... + 195364047.

Almost surely, 2^231310331312 is an apocalyptic number.

It is an amenable number.

231310331312 is a deficient number, since it is larger than the sum of its proper divisors (228965971024).

231310331312 is a wasteful number, since it uses less digits than its factorization.

231310331312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390726956 (or 390726950 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 231310331312 its reverse (213133013132), we get a palindrome (444443344444).

The spelling of 231310331312 in words is "two hundred thirty-one billion, three hundred ten million, three hundred thirty-one thousand, three hundred twelve".