31331131032332 has 6 divisors (see below), whose sum is σ = 54829479306588. Its totient is φ = 15665565516164.

The previous prime is 31331131032323. The next prime is 31331131032343. The reversal of 31331131032332 is 23323013113313.

It is a junction number, because it is equal to n+sod(n) for n = 31331131032295 and 31331131032304.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3916391379038 + ... + 3916391379045.

It is an arithmetic number, because the mean of its divisors is an integer number (9138246551098).

Almost surely, 2^{31331131032332} is an apocalyptic number.

It is an amenable number.

31331131032332 is a deficient number, since it is larger than the sum of its proper divisors (23498348274256).

31331131032332 is a wasteful number, since it uses less digits than its factorization.

31331131032332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7832782758087 (or 7832782758085 counting only the distinct ones).

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

Adding to 31331131032332 its reverse (23323013113313), we get a palindrome (54654144145645).

The spelling of 31331131032332 in words is "thirty-one trillion, three hundred thirty-one billion, one hundred thirty-one million, thirty-two thousand, three hundred thirty-two".