23320211020021 has 4 divisors (see below), whose sum is σ = 23339857365792. Its totient is φ = 23300564674252.

The previous prime is 23320211019997. The next prime is 23320211020027. The reversal of 23320211020021 is 12002011202332.

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 23320211020021 - 2⁷ = 23320211019893 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 (23320211020027) 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, 9823171105 + ... + 9823173478.

It is an arithmetic number, because the mean of its divisors is an integer number (5834964341448).

Almost surely, 2^{23320211020021} is an apocalyptic number.

It is an amenable number.

23320211020021 is a deficient number, since it is larger than the sum of its proper divisors (19646345771).

23320211020021 is a wasteful number, since it uses less digits than its factorization.

23320211020021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19646345770.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 23320211020021 its reverse (12002011202332), we get a palindrome (35322222222353).

The spelling of 23320211020021 in words is "twenty-three trillion, three hundred twenty billion, two hundred eleven million, twenty thousand, twenty-one".