23120033121021 has 8 divisors (see below), whose sum is σ = 30889494355104. Its totient is φ = 15381963650480.

The previous prime is 23120033121011. The next prime is 23120033121067. The reversal of 23120033121021 is 12012133002132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23120033121021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23120033121001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7847939166 + ... + 7847942111.

It is an arithmetic number, because the mean of its divisors is an integer number (3861186794388).

Almost surely, 2^{23120033121021} is an apocalyptic number.

It is an amenable number.

23120033121021 is a deficient number, since it is larger than the sum of its proper divisors (7769461234083).

23120033121021 is a wasteful number, since it uses less digits than its factorization.

23120033121021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15695881771.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 23120033121021 its reverse (12012133002132), we get a palindrome (35132166123153).

The spelling of 23120033121021 in words is "twenty-three trillion, one hundred twenty billion, thirty-three million, one hundred twenty-one thousand, twenty-one".