321325455231 has 96 divisors (see below), whose sum is σ = 524143706112. Its totient is φ = 187982138880.

The previous prime is 321325455203. The next prime is 321325455233. The reversal of 321325455231 is 132554523123.

321325455231 is a `hidden beast` number, since 3 + 2 + 1 + 32 + 545 + 52 + 31 = 666.

It is not a de Polignac number, because 321325455231 - 2⁶ = 321325455167 is a prime.

It is a super-2 number, since 2×321325455231² (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 (321325455233) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 326881966 + ... + 326882948.

It is an arithmetic number, because the mean of its divisors is an integer number (5459830272).

Almost surely, 2^321325455231 is an apocalyptic number.

321325455231 is a deficient number, since it is larger than the sum of its proper divisors (202818250881).

321325455231 is a wasteful number, since it uses less digits than its factorization.

321325455231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653 (or 1650 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

Adding to 321325455231 its reverse (132554523123), we get a palindrome (453879978354).

The spelling of 321325455231 in words is "three hundred twenty-one billion, three hundred twenty-five million, four hundred fifty-five thousand, two hundred thirty-one".