331620240536431 has 32 divisors (see below), whose sum is σ = 419115863001600. Its totient is φ = 254863410439680.

The previous prime is 331620240536411. The next prime is 331620240536531. The reversal of 331620240536431 is 134635042026133.

It is not a de Polignac number, because 331620240536431 - 2⁵ = 331620240536399 is a prime.

It is a super-2 number, since 2×331620240536431² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331620240536411) 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, 1048546240 + ... + 1048862458.

It is an arithmetic number, because the mean of its divisors is an integer number (13097370718800).

Almost surely, 2^{331620240536431} is an apocalyptic number.

331620240536431 is a deficient number, since it is larger than the sum of its proper divisors (87495622465169).

331620240536431 is a wasteful number, since it uses less digits than its factorization.

331620240536431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502879.

The product of its (nonzero) digits is 933120, while the sum is 43.

The spelling of 331620240536431 in words is "three hundred thirty-one trillion, six hundred twenty billion, two hundred forty million, five hundred thirty-six thousand, four hundred thirty-one".