331320132231 has 48 divisors (see below), whose sum is σ = 530719386624. Its totient is φ = 182891808000.

The previous prime is 331320132223. The next prime is 331320132233. The reversal of 331320132231 is 132231023133.

It is not a de Polignac number, because 331320132231 - 2³ = 331320132223 is a prime.

It is a super-2 number, since 2×331320132231² (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 (331320132233) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 674665 + ... + 1057266.

It is an arithmetic number, because the mean of its divisors is an integer number (11056653888).

Almost surely, 2^331320132231 is an apocalyptic number.

331320132231 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

331320132231 is a deficient number, since it is larger than the sum of its proper divisors (199399254393).

331320132231 is a wasteful number, since it uses less digits than its factorization.

331320132231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1732004 (or 1731993 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 331320132231 its reverse (132231023133), we get a palindrome (463551155364).

The spelling of 331320132231 in words is "three hundred thirty-one billion, three hundred twenty million, one hundred thirty-two thousand, two hundred thirty-one".