331212320001 has 64 divisors (see below), whose sum is σ = 501192748800. Its totient is φ = 216138240000.

The previous prime is 331212319993. The next prime is 331212320003. The reversal of 331212320001 is 100023212133.

331212320001 is a `hidden beast` number, since 331 + 2 + 12 + 320 + 0 + 0 + 1 = 666.

It is not a de Polignac number, because 331212320001 - 2³ = 331212319993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (331212320003) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 206877601 + ... + 206879201.

It is an arithmetic number, because the mean of its divisors is an integer number (7831136700).

Almost surely, 2^331212320001 is an apocalyptic number.

It is an amenable number.

331212320001 is a deficient number, since it is larger than the sum of its proper divisors (169980428799).

331212320001 is a wasteful number, since it uses less digits than its factorization.

331212320001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2527 (or 2521 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 331212320001 its reverse (100023212133), we get a palindrome (431235532134).

The spelling of 331212320001 in words is "three hundred thirty-one billion, two hundred twelve million, three hundred twenty thousand, one".