23210112040021 has 4 divisors (see below), whose sum is σ = 23210272101600. Its totient is φ = 23209951978444.

The previous prime is 23210112040013. The next prime is 23210112040033. The reversal of 23210112040021 is 12004021101232.

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 23210112040021 - 2³ = 23210112040013 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 (23210112010021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79813081 + ... + 80103358.

It is an arithmetic number, because the mean of its divisors is an integer number (5802568025400).

Almost surely, 2^{23210112040021} is an apocalyptic number.

It is an amenable number.

23210112040021 is a deficient number, since it is larger than the sum of its proper divisors (160061579).

23210112040021 is a wasteful number, since it uses less digits than its factorization.

23210112040021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160061578.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 23210112040021 its reverse (12004021101232), we get a palindrome (35214133141253).

The spelling of 23210112040021 in words is "twenty-three trillion, two hundred ten billion, one hundred twelve million, forty thousand, twenty-one".