321431096 has 16 divisors (see below), whose sum is σ = 688781040. Its totient is φ = 137756160.

The previous prime is 321431083. The next prime is 321431119. The reversal of 321431096 is 690134123.

It is a super-2 number, since 2×321431096² = 206635898951522432, 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 3 ways as a sum of consecutive naturals, for example, 2869865 + ... + 2869976.

It is an arithmetic number, because the mean of its divisors is an integer number (43048815).

Almost surely, 2^321431096 is an apocalyptic number.

It is an amenable number.

321431096 is an abundant number, since it is smaller than the sum of its proper divisors (367349944).

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

321431096 is a wasteful number, since it uses less digits than its factorization.

321431096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5739854 (or 5739850 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 321431096 is about 17928.4995468109. The cubic root of 321431096 is about 685.0085039881.

The spelling of 321431096 in words is "three hundred twenty-one million, four hundred thirty-one thousand, ninety-six".