312131100001319 has 4 divisors (see below), whose sum is σ = 317421457628520. Its totient is φ = 306840742374120.

The previous prime is 312131100001313. The next prime is 312131100001321. The reversal of 312131100001319 is 913100001131213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312131100001319 is a prime.

It is a super-2 number, since 2×312131100001319² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312131100001313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2645178813512 + ... + 2645178813629.

It is an arithmetic number, because the mean of its divisors is an integer number (79355364407130).

Almost surely, 2^{312131100001319} is an apocalyptic number.

312131100001319 is a deficient number, since it is larger than the sum of its proper divisors (5290357627201).

312131100001319 is an equidigital number, since it uses as much as digits as its factorization.

312131100001319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5290357627200.

The product of its (nonzero) digits is 486, while the sum is 26.

The spelling of 312131100001319 in words is "three hundred twelve trillion, one hundred thirty-one billion, one hundred million, one thousand, three hundred nineteen".