321021045232 has 40 divisors (see below), whose sum is σ = 658612346112. Its totient is φ = 151057920000.

The previous prime is 321021045223. The next prime is 321021045263. The reversal of 321021045232 is 232540120123.

It is a super-2 number, since 2×321021045232² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 321021045197 and 321021045206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4775857 + ... + 4842607.

Almost surely, 2^321021045232 is an apocalyptic number.

It is an amenable number.

321021045232 is an abundant number, since it is smaller than the sum of its proper divisors (337591300880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321021045232 is a wasteful number, since it uses less digits than its factorization.

321021045232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84457 (or 84451 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 321021045232 its reverse (232540120123), we get a palindrome (553561165355).

The spelling of 321021045232 in words is "three hundred twenty-one billion, twenty-one million, forty-five thousand, two hundred thirty-two".