323120010021 has 16 divisors (see below), whose sum is σ = 456946588224. Its totient is φ = 202396561664.

The previous prime is 323120009983. The next prime is 323120010029. The reversal of 323120010021 is 120010021323.

It is a cyclic number.

It is not a de Polignac number, because 323120010021 - 2²⁷ = 322985792293 is a prime.

It is a super-2 number, since 2×323120010021² (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 (323120010029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5366730 + ... + 5426603.

It is an arithmetic number, because the mean of its divisors is an integer number (28559161764).

Almost surely, 2^323120010021 is an apocalyptic number.

It is an amenable number.

323120010021 is a deficient number, since it is larger than the sum of its proper divisors (133826578203).

323120010021 is a wasteful number, since it uses less digits than its factorization.

323120010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10793940.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 323120010021 its reverse (120010021323), we get a palindrome (443130031344).

It can be divided in two parts, 323 and 120010021, that multiplied together give a palindrome (38763236783).

The spelling of 323120010021 in words is "three hundred twenty-three billion, one hundred twenty million, ten thousand, twenty-one".