23554331032121 has 4 divisors (see below), whose sum is σ = 23554349202000. Its totient is φ = 23554312862244.

The previous prime is 23554331032081. The next prime is 23554331032147. The reversal of 23554331032121 is 12123013345532.

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 23554331032121 - 2²² = 23554326837817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23554331032181) 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, 6977471 + ... + 9787428.

It is an arithmetic number, because the mean of its divisors is an integer number (5888587300500).

Almost surely, 2^{23554331032121} is an apocalyptic number.

It is an amenable number.

23554331032121 is a deficient number, since it is larger than the sum of its proper divisors (18169879).

23554331032121 is a wasteful number, since it uses less digits than its factorization.

23554331032121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18169878.

The product of its (nonzero) digits is 64800, while the sum is 35.

Adding to 23554331032121 its reverse (12123013345532), we get a palindrome (35677344377653).

The spelling of 23554331032121 in words is "twenty-three trillion, five hundred fifty-four billion, three hundred thirty-one million, thirty-two thousand, one hundred twenty-one".