31233223312 has 20 divisors (see below), whose sum is σ = 60976316016. Its totient is φ = 15497399840.

The previous prime is 31233223309. The next prime is 31233223319. The reversal of 31233223312 is 21332233213.

It is not an unprimeable number, because it can be changed into a prime (31233223319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7448578 + ... + 7452769.

Almost surely, 2^31233223312 is an apocalyptic number.

It is an amenable number.

31233223312 is a deficient number, since it is larger than the sum of its proper divisors (29743092704).

31233223312 is a wasteful number, since it uses less digits than its factorization.

31233223312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14901486 (or 14901480 counting only the distinct ones).

The product of its digits is 3888, while the sum is 25.

Adding to 31233223312 its reverse (21332233213), we get a palindrome (52565456525).

Subtracting from 31233223312 its reverse (21332233213), we obtain a palindrome (9900990099).

The spelling of 31233223312 in words is "thirty-one billion, two hundred thirty-three million, two hundred twenty-three thousand, three hundred twelve".