312131101200999 has 32 divisors (see below), whose sum is σ = 421608014807040. Its totient is φ = 205372876332000.

The previous prime is 312131101200979. The next prime is 312131101201013. The reversal of 312131101200999 is 999002101131213.

It is not a de Polignac number, because 312131101200999 - 2¹⁶ = 312131101135463 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 312131101200999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312131101200959) 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, 6938228584 + ... + 6938273570.

It is an arithmetic number, because the mean of its divisors is an integer number (13175250462720).

Almost surely, 2^{312131101200999} is an apocalyptic number.

312131101200999 is a deficient number, since it is larger than the sum of its proper divisors (109476913606041).

312131101200999 is a wasteful number, since it uses less digits than its factorization.

312131101200999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55891.

The product of its (nonzero) digits is 26244, while the sum is 42.

The spelling of 312131101200999 in words is "three hundred twelve trillion, one hundred thirty-one billion, one hundred one million, two hundred thousand, nine hundred ninety-nine".