23001142021 has 16 divisors (see below), whose sum is σ = 27030407040. Its totient is φ = 19295881920.

The previous prime is 23001142007. The next prime is 23001142033. The reversal of 23001142021 is 12024110032.

It is a cyclic number.

It is not a de Polignac number, because 23001142021 - 2⁹ = 23001141509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23001141986 and 23001142004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23001142061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 494400 + ... + 538918.

It is an arithmetic number, because the mean of its divisors is an integer number (1689400440).

Almost surely, 2^23001142021 is an apocalyptic number.

It is an amenable number.

23001142021 is a deficient number, since it is larger than the sum of its proper divisors (4029265019).

23001142021 is a wasteful number, since it uses less digits than its factorization.

23001142021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48156.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 23001142021 its reverse (12024110032), we get a palindrome (35025252053).

The spelling of 23001142021 in words is "twenty-three billion, one million, one hundred forty-two thousand, twenty-one".