312876977231 has 8 divisors (see below), whose sum is σ = 385079356704. Its totient is φ = 247551014880.

The previous prime is 312876977209. The next prime is 312876977243. The reversal of 312876977231 is 132779678213.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-312876977231 is a prime.

It is a super-2 number, since 2×312876977231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312876977291) 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, 1719104180 + ... + 1719104361.

It is an arithmetic number, because the mean of its divisors is an integer number (48134919588).

Almost surely, 2^312876977231 is an apocalyptic number.

312876977231 is a deficient number, since it is larger than the sum of its proper divisors (72202379473).

312876977231 is a wasteful number, since it uses less digits than its factorization.

312876977231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3438208561.

The product of its digits is 5334336, while the sum is 56.

The spelling of 312876977231 in words is "three hundred twelve billion, eight hundred seventy-six million, nine hundred seventy-seven thousand, two hundred thirty-one".