312131100000401 has 8 divisors (see below), whose sum is σ = 348425413954464. Its totient is φ = 277156579281120.

The previous prime is 312131100000389. The next prime is 312131100000409. The reversal of 312131100000401 is 104000001131213.

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-312131100000401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 312131100000401.

It is not an unprimeable number, because it can be changed into a prime (312131100000409) 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, 329948308196 + ... + 329948309141.

It is an arithmetic number, because the mean of its divisors is an integer number (43553176744308).

Almost surely, 2^{312131100000401} is an apocalyptic number.

It is an amenable number.

312131100000401 is a deficient number, since it is larger than the sum of its proper divisors (36294313954063).

312131100000401 is a wasteful number, since it uses less digits than its factorization.

312131100000401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659896617391.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 312131100000401 its reverse (104000001131213), we get a palindrome (416131101131614).

The spelling of 312131100000401 in words is "three hundred twelve trillion, one hundred thirty-one billion, one hundred million, four hundred one", and thus it is an aban number.