23112015042121 has 4 divisors (see below), whose sum is σ = 23122210022352. Its totient is φ = 23101820061892.

The previous prime is 23112015042079. The next prime is 23112015042133. The reversal of 23112015042121 is 12124051021132.

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 23112015042121 - 2¹⁹ = 23112014517833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23112015042191) 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, 5097486715 + ... + 5097491248.

It is an arithmetic number, because the mean of its divisors is an integer number (5780552505588).

Almost surely, 2^{23112015042121} is an apocalyptic number.

It is an amenable number.

23112015042121 is a deficient number, since it is larger than the sum of its proper divisors (10194980231).

23112015042121 is a wasteful number, since it uses less digits than its factorization.

23112015042121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10194980230.

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 23112015042121 its reverse (12124051021132), we get a palindrome (35236066063253).

The spelling of 23112015042121 in words is "twenty-three trillion, one hundred twelve billion, fifteen million, forty-two thousand, one hundred twenty-one".