331312131200 has 48 divisors (see below), whose sum is σ = 818444507010. Its totient is φ = 132524851200.

The previous prime is 331312131197. The next prime is 331312131239. The reversal of 331312131200 is 2131213133.

It can be written as a sum of positive squares in 3 ways, for example, as 165050437696 + 166261693504 = 406264^2 + 407752^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51764321 + ... + 51770720.

Almost surely, 2^331312131200 is an apocalyptic number.

It is an amenable number.

331312131200 is an abundant number, since it is smaller than the sum of its proper divisors (487132375810).

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

331312131200 is a wasteful number, since it uses less digits than its factorization.

331312131200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103535065 (or 103535048 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 331312131200 its reverse (2131213133), we get a palindrome (333443344333).

The spelling of 331312131200 in words is "three hundred thirty-one billion, three hundred twelve million, one hundred thirty-one thousand, two hundred".