323130331132221 has 32 divisors (see below), whose sum is σ = 434501347512960. Its totient is φ = 213593953536000.

The previous prime is 323130331132183. The next prime is 323130331132229. The reversal of 323130331132221 is 122231133031323.

It is not a de Polignac number, because 323130331132221 - 2⁴⁵ = 287945959043389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323130331132229) 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, 1021976071 + ... + 1022292203.

It is an arithmetic number, because the mean of its divisors is an integer number (13578167109780).

Almost surely, 2^{323130331132221} is an apocalyptic number.

It is an amenable number.

323130331132221 is a deficient number, since it is larger than the sum of its proper divisors (111371016380739).

323130331132221 is a wasteful number, since it uses less digits than its factorization.

323130331132221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319437.

The product of its (nonzero) digits is 11664, while the sum is 30.

Adding to 323130331132221 its reverse (122231133031323), we get a palindrome (445361464163544).

The spelling of 323130331132221 in words is "three hundred twenty-three trillion, one hundred thirty billion, three hundred thirty-one million, one hundred thirty-two thousand, two hundred twenty-one".