321112040 has 32 divisors (see below), whose sum is σ = 723806280. Its totient is φ = 128212992.

The previous prime is 321112009. The next prime is 321112067. The reversal of 321112040 is 40211123.

It can be written as a sum of positive squares in 4 ways, for example, as 320624836 + 487204 = 17906^2 + 698^2 .

It is a super-2 number, since 2×321112040² = 206225884465923200, which contains 22 as substring.

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, 16124 + ... + 30036.

Almost surely, 2^321112040 is an apocalyptic number.

It is an amenable number.

321112040 is an abundant number, since it is smaller than the sum of its proper divisors (402694240).

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

321112040 is a wasteful number, since it uses less digits than its factorization.

321112040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14501 (or 14497 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 321112040 is about 17919.5993258778. The cubic root of 321112040 is about 684.7817799928.

Adding to 321112040 its reverse (40211123), we get a palindrome (361323163).

It can be divided in two parts, 3211 and 12040, that added together give a palindrome (15251).

The spelling of 321112040 in words is "three hundred twenty-one million, one hundred twelve thousand, forty".