331320211398 has 48 divisors (see below), whose sum is σ = 783159017472. Its totient is φ = 100395126000.

The previous prime is 331320211309. The next prime is 331320211399. The reversal of 331320211398 is 893112023133.

It is a happy number.

331320211398 is a `hidden beast` number, since 3 + 31 + 3 + 20 + 211 + 398 = 666.

It is a super-2 number, since 2×331320211398² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331320211399) 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 23 ways as a sum of consecutive naturals, for example, 7238043 + ... + 7283673.

It is an arithmetic number, because the mean of its divisors is an integer number (16315812864).

Almost surely, 2^331320211398 is an apocalyptic number.

331320211398 is an abundant number, since it is smaller than the sum of its proper divisors (451838806074).

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

331320211398 is a wasteful number, since it uses less digits than its factorization.

331320211398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82321 (or 82318 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The spelling of 331320211398 in words is "three hundred thirty-one billion, three hundred twenty million, two hundred eleven thousand, three hundred ninety-eight".