331315354442421 has 128 divisors (see below), whose sum is σ = 539357717606400. Its totient is φ = 200163429365760.

The previous prime is 331315354442381. The next prime is 331315354442477. The reversal of 331315354442421 is 124244453513133.

331315354442421 is a `hidden beast` number, since 3 + 3 + 1 + 3 + 15 + 354 + 44 + 242 + 1 = 666.

It is not a de Polignac number, because 331315354442421 - 2¹⁰ = 331315354441397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331315354442621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 18479290185 + ... + 18479308113.

It is an arithmetic number, because the mean of its divisors is an integer number (4213732168800).

Almost surely, 2^{331315354442421} is an apocalyptic number.

It is an amenable number.

331315354442421 is a deficient number, since it is larger than the sum of its proper divisors (208042363163979).

331315354442421 is a wasteful number, since it uses less digits than its factorization.

331315354442421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31256 (or 31250 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 45.

The spelling of 331315354442421 in words is "three hundred thirty-one trillion, three hundred fifteen billion, three hundred fifty-four million, four hundred forty-two thousand, four hundred twenty-one".