31223005832 has 12 divisors (see below), whose sum is σ = 58544073045. Its totient is φ = 15611253024.

The previous prime is 31223005813. The next prime is 31223005901. The reversal of 31223005832 is 23850032213.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 31206635716 + 16370116 = 176654^2 + 4046^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=124946.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31223005795 and 31223005804.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 468548 + ... + 531020.

Almost surely, 2^31223005832 is an apocalyptic number.

It is an amenable number.

31223005832 is a deficient number, since it is larger than the sum of its proper divisors (27321067213).

31223005832 is an frugal number, since it uses more digits than its factorization.

31223005832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124952 (or 62475 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The spelling of 31223005832 in words is "thirty-one billion, two hundred twenty-three million, five thousand, eight hundred thirty-two".