23312201232121 has 4 divisors (see below), whose sum is σ = 23495761871872. Its totient is φ = 23128640592372.

The previous prime is 23312201232107. The next prime is 23312201232137. The reversal of 23312201232121 is 12123210221332.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23312201232121 - 2⁹ = 23312201231609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23312201239121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91780319685 + ... + 91780319938.

It is an arithmetic number, because the mean of its divisors is an integer number (5873940467968).

Almost surely, 2^{23312201232121} is an apocalyptic number.

It is an amenable number.

23312201232121 is a deficient number, since it is larger than the sum of its proper divisors (183560639751).

23312201232121 is a wasteful number, since it uses less digits than its factorization.

23312201232121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183560639750.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 23312201232121 its reverse (12123210221332), we get a palindrome (35435411453453).

The spelling of 23312201232121 in words is "twenty-three trillion, three hundred twelve billion, two hundred one million, two hundred thirty-two thousand, one hundred twenty-one".