313212232112 has 20 divisors (see below), whose sum is σ = 653529369360. Its totient is φ = 144559491648.

The previous prime is 313212232111. The next prime is 313212232139. The reversal of 313212232112 is 211232212313.

It is a super-3 number, since 3×313212232112³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (313212232111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 752913812 + ... + 752914227.

It is an arithmetic number, because the mean of its divisors is an integer number (32676468468).

Almost surely, 2^313212232112 is an apocalyptic number.

It is an amenable number.

313212232112 is an abundant number, since it is smaller than the sum of its proper divisors (340317137248).

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

313212232112 is a wasteful number, since it uses less digits than its factorization.

313212232112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505828060 (or 1505828054 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

Adding to 313212232112 its reverse (211232212313), we get a palindrome (524444444425).

The spelling of 313212232112 in words is "three hundred thirteen billion, two hundred twelve million, two hundred thirty-two thousand, one hundred twelve".