32121013028 has 12 divisors (see below), whose sum is σ = 60535755420. Its totient is φ = 14825082912.

The previous prime is 32121013007. The next prime is 32121013039. The reversal of 32121013028 is 82031012123.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1465205284 + 30655807744 = 38278^2 + 175088^2 .

It is a junction number, because it is equal to n+sod(n) for n = 32121012994 and 32121013012.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 308855843 + ... + 308855946.

It is an arithmetic number, because the mean of its divisors is an integer number (5044646285).

Almost surely, 2^32121013028 is an apocalyptic number.

It is an amenable number.

32121013028 is a deficient number, since it is larger than the sum of its proper divisors (28414742392).

32121013028 is a wasteful number, since it uses less digits than its factorization.

32121013028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617711806 (or 617711804 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 32121013028 in words is "thirty-two billion, one hundred twenty-one million, thirteen thousand, twenty-eight".