31232412312 has 32 divisors (see below), whose sum is σ = 78839105280. Its totient is φ = 10309727520.

The previous prime is 31232412283. The next prime is 31232412319. The reversal of 31232412312 is 21321423213.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31232412319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6314764 + ... + 6319707.

It is an arithmetic number, because the mean of its divisors is an integer number (2463722040).

Almost surely, 2^31232412312 is an apocalyptic number.

It is an amenable number.

31232412312 is an abundant number, since it is smaller than the sum of its proper divisors (47606692968).

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

31232412312 is a wasteful number, since it uses less digits than its factorization.

31232412312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12634583 (or 12634579 counting only the distinct ones).

The product of its digits is 1728, while the sum is 24.

Adding to 31232412312 its reverse (21321423213), we get a palindrome (52553835525).

The spelling of 31232412312 in words is "thirty-one billion, two hundred thirty-two million, four hundred twelve thousand, three hundred twelve".