31311114331 has 16 divisors (see below), whose sum is σ = 37348775424. Its totient is φ = 25665165504.

The previous prime is 31311114319. The next prime is 31311114337. The reversal of 31311114331 is 13341111313.

It is a cyclic number.

It is not a de Polignac number, because 31311114331 - 2⁵ = 31311114299 is a prime.

It is a super-2 number, since 2×31311114331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31311114337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 739815 + ... + 780991.

It is an arithmetic number, because the mean of its divisors is an integer number (2334298464).

Almost surely, 2^31311114331 is an apocalyptic number.

31311114331 is a deficient number, since it is larger than the sum of its proper divisors (6037661093).

31311114331 is a wasteful number, since it uses less digits than its factorization.

31311114331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45930.

The product of its digits is 324, while the sum is 22.

Adding to 31311114331 its reverse (13341111313), we get a palindrome (44652225644).

The spelling of 31311114331 in words is "thirty-one billion, three hundred eleven million, one hundred fourteen thousand, three hundred thirty-one".