23121300213231 has 32 divisors (see below), whose sum is σ = 34571530618368. Its totient is φ = 13621707066240.

The previous prime is 23121300213229. The next prime is 23121300213299. The reversal of 23121300213231 is 13231200312132.

It is not a de Polignac number, because 23121300213231 - 2¹ = 23121300213229 is a prime.

It is a super-2 number, since 2×23121300213231² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23121300213731) 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, 7328011 + ... + 9997116.

It is an arithmetic number, because the mean of its divisors is an integer number (1080360331824).

Almost surely, 2^{23121300213231} is an apocalyptic number.

23121300213231 is a deficient number, since it is larger than the sum of its proper divisors (11450230405137).

23121300213231 is a wasteful number, since it uses less digits than its factorization.

23121300213231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17326271.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 23121300213231 its reverse (13231200312132), we get a palindrome (36352500525363).

The spelling of 23121300213231 in words is "twenty-three trillion, one hundred twenty-one billion, three hundred million, two hundred thirteen thousand, two hundred thirty-one".