31312211131130 has 32 divisors (see below), whose sum is σ = 56737490065920. Its totient is φ = 12441444364800.

The previous prime is 31312211131127. The next prime is 31312211131213. The reversal of 31312211131130 is 3113111221313.

It is a super-2 number, since 2×31312211131130² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31312211131096 and 31312211131105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38887151 + ... + 39684189.

It is an arithmetic number, because the mean of its divisors is an integer number (1773046564560).

Almost surely, 2^{31312211131130} is an apocalyptic number.

31312211131130 is a deficient number, since it is larger than the sum of its proper divisors (25425278934790).

31312211131130 is a wasteful number, since it uses less digits than its factorization.

31312211131130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823214.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 31312211131130 its reverse (3113111221313), we get a palindrome (34425322352443).

The spelling of 31312211131130 in words is "thirty-one trillion, three hundred twelve billion, two hundred eleven million, one hundred thirty-one thousand, one hundred thirty".