312113021332 has 24 divisors (see below), whose sum is σ = 628782444864. Its totient is φ = 132786351552.

The previous prime is 312113021309. The next prime is 312113021357. The reversal of 312113021332 is 233120311213.

It is a congruent number.

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, 40678258 + ... + 40685929.

It is an arithmetic number, because the mean of its divisors is an integer number (26199268536).

Almost surely, 2^312113021332 is an apocalyptic number.

It is an amenable number.

312113021332 is an abundant number, since it is smaller than the sum of its proper divisors (316669423532).

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

312113021332 is a wasteful number, since it uses less digits than its factorization.

312113021332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81364335 (or 81364333 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 312113021332 its reverse (233120311213), we get a palindrome (545233332545).

The spelling of 312113021332 in words is "three hundred twelve billion, one hundred thirteen million, twenty-one thousand, three hundred thirty-two".