321112032 has 48 divisors (see below), whose sum is σ = 843841152. Its totient is φ = 106920320.

The previous prime is 321112009. The next prime is 321112067. The reversal of 321112032 is 230211123.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×321112032² = 206225874190338048, which contains 22 as substring.

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, 172933 + ... + 174779.

It is an arithmetic number, because the mean of its divisors is an integer number (17580024).

Almost surely, 2^321112032 is an apocalyptic number.

321112032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

321112032 is an abundant number, since it is smaller than the sum of its proper divisors (522729120).

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

321112032 is a wasteful number, since it uses less digits than its factorization.

321112032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3671 (or 3663 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 321112032 is about 17919.5991026585. The cubic root of 321112032 is about 684.7817743060.

Adding to 321112032 its reverse (230211123), we get a palindrome (551323155).

Subtracting from 321112032 its reverse (230211123), we obtain a palindrome (90900909).

It can be divided in two parts, 32111 and 2032, that added together give a palindrome (34143).

The spelling of 321112032 in words is "three hundred twenty-one million, one hundred twelve thousand, thirty-two".