331813112 has 32 divisors (see below), whose sum is σ = 670137600. Its totient is φ = 153516384.

The previous prime is 331813103. The next prime is 331813121. The reversal of 331813112 is 211318133.

It is an interprime number because it is at equal distance from previous prime (331813103) and next prime (331813121).

It is a super-2 number, since 2×331813112² = 220199882590249088, 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, 18848 + ... + 31919.

It is an arithmetic number, because the mean of its divisors is an integer number (20941800).

Almost surely, 2^331813112 is an apocalyptic number.

It is an amenable number.

331813112 is an abundant number, since it is smaller than the sum of its proper divisors (338324488).

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

331813112 is a wasteful number, since it uses less digits than its factorization.

331813112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50835 (or 50831 counting only the distinct ones).

The product of its digits is 432, while the sum is 23.

The square root of 331813112 is about 18215.7380306152. The cubic root of 331813112 is about 692.3056052688.

The spelling of 331813112 in words is "three hundred thirty-one million, eight hundred thirteen thousand, one hundred twelve".