31330123232 has 24 divisors (see below), whose sum is σ = 61789618800. Its totient is φ = 15637521664.

The previous prime is 31330123103. The next prime is 31330123271. The reversal of 31330123232 is 23232103313.

It is a super-2 number, since 2×31330123232² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31330123198 and 31330123207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 842132 + ... + 878547.

It is an arithmetic number, because the mean of its divisors is an integer number (2574567450).

Almost surely, 2^31330123232 is an apocalyptic number.

31330123232 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31330123232 is a deficient number, since it is larger than the sum of its proper divisors (30459495568).

31330123232 is a wasteful number, since it uses less digits than its factorization.

31330123232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1721258 (or 1721250 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 31330123232 its reverse (23232103313), we get a palindrome (54562226545).

The spelling of 31330123232 in words is "thirty-one billion, three hundred thirty million, one hundred twenty-three thousand, two hundred thirty-two".