331532130 has 48 divisors (see below), whose sum is σ = 845256960. Its totient is φ = 83205888.

The previous prime is 331532101. The next prime is 331532153. The reversal of 331532130 is 31235133.

It is a junction number, because it is equal to n+sod(n) for n = 331532097 and 331532106.

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, 10450 + ... + 27789.

It is an arithmetic number, because the mean of its divisors is an integer number (17609520).

Almost surely, 2^331532130 is an apocalyptic number.

331532130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

331532130 is an abundant number, since it is smaller than the sum of its proper divisors (513724830).

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

331532130 is a wasteful number, since it uses less digits than its factorization.

331532130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38283 (or 38266 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 21.

The square root of 331532130 is about 18208.0237807402. The cubic root of 331532130 is about 692.1101334395.

Adding to 331532130 its reverse (31235133), we get a palindrome (362767263).

The spelling of 331532130 in words is "three hundred thirty-one million, five hundred thirty-two thousand, one hundred thirty".