312213134323131 has 32 divisors (see below), whose sum is σ = 425296173459456. Its totient is φ = 203639330160000.

The previous prime is 312213134323093. The next prime is 312213134323147. The reversal of 312213134323131 is 131323431312213.

It is not a de Polignac number, because 312213134323131 - 2¹⁰ = 312213134322107 is a prime.

It is a super-2 number, since 2×312213134323131² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312213134323092 and 312213134323101.

It is not an unprimeable number, because it can be changed into a prime (312213134323231) 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, 7421079826 + ... + 7421121896.

It is an arithmetic number, because the mean of its divisors is an integer number (13290505420608).

Almost surely, 2^{312213134323131} is an apocalyptic number.

312213134323131 is a deficient number, since it is larger than the sum of its proper divisors (113083039136325).

312213134323131 is a wasteful number, since it uses less digits than its factorization.

312213134323131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60043.

The product of its digits is 23328, while the sum is 33.

Adding to 312213134323131 its reverse (131323431312213), we get a palindrome (443536565635344).

The spelling of 312213134323131 in words is "three hundred twelve trillion, two hundred thirteen billion, one hundred thirty-four million, three hundred twenty-three thousand, one hundred thirty-one".