312153222125444 has 96 divisors (see below), whose sum is σ = 636332433408000. Its totient is φ = 131235354771840.

The previous prime is 312153222125443. The next prime is 312153222125453. The reversal of 312153222125444 is 444521222351213.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (312153222125443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109353317 + ... + 112171539.

It is an arithmetic number, because the mean of its divisors is an integer number (6628462848000).

Almost surely, 2^{312153222125444} is an apocalyptic number.

It is an amenable number.

312153222125444 is an abundant number, since it is smaller than the sum of its proper divisors (324179211282556).

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

312153222125444 is a wasteful number, since it uses less digits than its factorization.

312153222125444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2818713 (or 2818711 counting only the distinct ones).

The product of its digits is 460800, while the sum is 41.

Adding to 312153222125444 its reverse (444521222351213), we get a palindrome (756674444476657).

The spelling of 312153222125444 in words is "three hundred twelve trillion, one hundred fifty-three billion, two hundred twenty-two million, one hundred twenty-five thousand, four hundred forty-four".