331322130 has 64 divisors (see below), whose sum is σ = 921957120. Its totient is φ = 84509568.

The previous prime is 331322077. The next prime is 331322137. The reversal of 331322130 is 31223133.

331322130 is a `hidden beast` number, since 331 + 322 + 13 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (331322137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20467 + ... + 32886.

It is an arithmetic number, because the mean of its divisors is an integer number (14405580).

Almost surely, 2^331322130 is an apocalyptic number.

331322130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

331322130 is an abundant number, since it is smaller than the sum of its proper divisors (590634990).

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

331322130 is a wasteful number, since it uses less digits than its factorization.

331322130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53392 (or 53386 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 331322130 is about 18202.2561788367. The cubic root of 331322130 is about 691.9639698015.

Adding to 331322130 its reverse (31223133), we get a palindrome (362545263).

The spelling of 331322130 in words is "three hundred thirty-one million, three hundred twenty-two thousand, one hundred thirty".