312232121985 has 64 divisors (see below), whose sum is σ = 596457308160. Its totient is φ = 136466000640.

The previous prime is 312232121879. The next prime is 312232122017. The reversal of 312232121985 is 589121232213.

It is not a de Polignac number, because 312232121985 - 2⁷ = 312232121857 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 307690 + ... + 848019.

It is an arithmetic number, because the mean of its divisors is an integer number (9319645440).

Almost surely, 2^312232121985 is an apocalyptic number.

312232121985 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

312232121985 is a deficient number, since it is larger than the sum of its proper divisors (284225186175).

312232121985 is a wasteful number, since it uses less digits than its factorization.

312232121985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155838.

The product of its digits is 51840, while the sum is 39.

The spelling of 312232121985 in words is "three hundred twelve billion, two hundred thirty-two million, one hundred twenty-one thousand, nine hundred eighty-five".