323130213130021 has 16 divisors (see below), whose sum is σ = 352628497296000. Its totient is φ = 293652414763200.

The previous prime is 323130213130019. The next prime is 323130213130111. The reversal of 323130213130021 is 120031312031323.

It is a cyclic number.

It is not a de Polignac number, because 323130213130021 - 2¹ = 323130213130019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323130213137021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 375573751 + ... + 376433131.

It is an arithmetic number, because the mean of its divisors is an integer number (22039281081000).

Almost surely, 2^{323130213130021} is an apocalyptic number.

It is an amenable number.

323130213130021 is a deficient number, since it is larger than the sum of its proper divisors (29498284165979).

323130213130021 is a wasteful number, since it uses less digits than its factorization.

323130213130021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871260.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 323130213130021 its reverse (120031312031323), we get a palindrome (443161525161344).

The spelling of 323130213130021 in words is "three hundred twenty-three trillion, one hundred thirty billion, two hundred thirteen million, one hundred thirty thousand, twenty-one".