31332112331 has 8 divisors (see below), whose sum is σ = 34830735744. Its totient is φ = 27988983360.

The previous prime is 31332112303. The next prime is 31332112337. The reversal of 31332112331 is 13321123313.

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

It is not a de Polignac number, because 31332112331 - 2³⁰ = 30258370507 is a prime.

It is a super-2 number, since 2×31332112331² (a number of 22 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 = 31332112297 and 31332112306.

It is not an unprimeable number, because it can be changed into a prime (31332112337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38873186 + ... + 38873991.

It is an arithmetic number, because the mean of its divisors is an integer number (4353841968).

Almost surely, 2^31332112331 is an apocalyptic number.

31332112331 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

31332112331 is a deficient number, since it is larger than the sum of its proper divisors (3498623413).

31332112331 is a wasteful number, since it uses less digits than its factorization.

31332112331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77747221.

The product of its digits is 972, while the sum is 23.

Adding to 31332112331 its reverse (13321123313), we get a palindrome (44653235644).

It can be divided in two parts, 3 and 1332112331, that multiplied together give a palindrome (3996336993).

The spelling of 31332112331 in words is "thirty-one billion, three hundred thirty-two million, one hundred twelve thousand, three hundred thirty-one".