331121880 has 96 divisors (see below), whose sum is σ = 1105275600. Its totient is φ = 85909248.

The previous prime is 331121867. The next prime is 331121927. The reversal of 331121880 is 88121133.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 891 + ... + 25749.

Almost surely, 2^331121880 is an apocalyptic number.

331121880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 331121880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (552637800).

331121880 is an abundant number, since it is smaller than the sum of its proper divisors (774153720).

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

331121880 is a wasteful number, since it uses less digits than its factorization.

331121880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24913 (or 24906 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 331121880 is about 18196.7546557072. The cubic root of 331121880 is about 691.8245347945.

The spelling of 331121880 in words is "three hundred thirty-one million, one hundred twenty-one thousand, eight hundred eighty".