31312332330131 has 8 divisors (see below), whose sum is σ = 31473418579200. Its totient is φ = 31151283459912.

The previous prime is 31312332330119. The next prime is 31312332330137. The reversal of 31312332330131 is 13103323321313.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31312332330131 is a prime.

It is a super-2 number, since 2×31312332330131² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31312332330094 and 31312332330103.

It is not an unprimeable number, because it can be changed into a prime (31312332330137) 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, 7664225 + ... + 11016578.

It is an arithmetic number, because the mean of its divisors is an integer number (3934177322400).

Almost surely, 2^{31312332330131} is an apocalyptic number.

31312332330131 is a deficient number, since it is larger than the sum of its proper divisors (161086249069).

31312332330131 is a wasteful number, since it uses less digits than its factorization.

31312332330131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18689425.

The product of its (nonzero) digits is 8748, while the sum is 29.

Adding to 31312332330131 its reverse (13103323321313), we get a palindrome (44415655651444).

The spelling of 31312332330131 in words is "thirty-one trillion, three hundred twelve billion, three hundred thirty-two million, three hundred thirty thousand, one hundred thirty-one".