312131324324343 has 8 divisors (see below), whose sum is σ = 416176197168256. Its totient is φ = 208087000515000.

The previous prime is 312131324324327. The next prime is 312131324324387. The reversal of 312131324324343 is 343423423131213.

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

It is not a de Polignac number, because 312131324324343 - 2⁴ = 312131324324327 is a prime.

It is a super-2 number, since 2×312131324324343² (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 (312131324324843) 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, 135930283 + ... + 138207468.

It is an arithmetic number, because the mean of its divisors is an integer number (52022024646032).

Almost surely, 2^{312131324324343} is an apocalyptic number.

312131324324343 is a deficient number, since it is larger than the sum of its proper divisors (104044872843913).

312131324324343 is a wasteful number, since it uses less digits than its factorization.

312131324324343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274517285.

The product of its digits is 373248, while the sum is 39.

Adding to 312131324324343 its reverse (343423423131213), we get a palindrome (655554747455556).

The spelling of 312131324324343 in words is "three hundred twelve trillion, one hundred thirty-one billion, three hundred twenty-four million, three hundred twenty-four thousand, three hundred forty-three".