23323130121221 has 32 divisors (see below), whose sum is σ = 27843423978240. Its totient is φ = 19113554912256.

The previous prime is 23323130121209. The next prime is 23323130121227. The reversal of 23323130121221 is 12212103132332.

It is not a de Polignac number, because 23323130121221 - 2⁶ = 23323130121157 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 (23323130121227) 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, 52277531 + ... + 52721783.

It is an arithmetic number, because the mean of its divisors is an integer number (870106999320).

Almost surely, 2^{23323130121221} is an apocalyptic number.

It is an amenable number.

23323130121221 is a deficient number, since it is larger than the sum of its proper divisors (4520293857019).

23323130121221 is a wasteful number, since it uses less digits than its factorization.

23323130121221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446813.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 23323130121221 its reverse (12212103132332), we get a palindrome (35535233253553).

The spelling of 23323130121221 in words is "twenty-three trillion, three hundred twenty-three billion, one hundred thirty million, one hundred twenty-one thousand, two hundred twenty-one".