23002042120021 has 8 divisors (see below), whose sum is σ = 24003411949440. Its totient is φ = 22000779044112.

The previous prime is 23002042120007. The next prime is 23002042120037. The reversal of 23002042120021 is 12002124020032.

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

It is a cyclic number.

It is not a de Polignac number, because 23002042120021 - 2⁵ = 23002042119989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23002042120051) 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, 26247906 + ... + 27110083.

It is an arithmetic number, because the mean of its divisors is an integer number (3000426493680).

Almost surely, 2^{23002042120021} is an apocalyptic number.

It is an amenable number.

23002042120021 is a deficient number, since it is larger than the sum of its proper divisors (1001369829419).

23002042120021 is a wasteful number, since it uses less digits than its factorization.

23002042120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53376755.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 23002042120021 its reverse (12002124020032), we get a palindrome (35004166140053).

The spelling of 23002042120021 in words is "twenty-three trillion, two billion, forty-two million, one hundred twenty thousand, twenty-one".