31233323312 has 40 divisors (see below), whose sum is σ = 61398946704. Its totient is φ = 15388821504.

The previous prime is 31233323309. The next prime is 31233323327. The reversal of 31233323312 is 21332333213.

It is a happy number.

It is a super-2 number, since 2×31233323312² (a number of 22 digits) contains 22 as substring.

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, 1346888 + ... + 1369880.

Almost surely, 2^31233323312 is an apocalyptic number.

It is an amenable number.

31233323312 is a deficient number, since it is larger than the sum of its proper divisors (30165623392).

31233323312 is a wasteful number, since it uses less digits than its factorization.

31233323312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24237 (or 24231 counting only the distinct ones).

The product of its digits is 5832, while the sum is 26.

Adding to 31233323312 its reverse (21332333213), we get a palindrome (52565656525).

Subtracting from 31233323312 its reverse (21332333213), we obtain a palindrome (9900990099).

The spelling of 31233323312 in words is "thirty-one billion, two hundred thirty-three million, three hundred twenty-three thousand, three hundred twelve".