23311103021 has 4 divisors (see below), whose sum is σ = 24538003200. Its totient is φ = 22084202844.

The previous prime is 23311102961. The next prime is 23311103027. The reversal of 23311103021 is 12030111332.

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 23311103021 - 2⁶ = 23311102957 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 (23311103027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 613450061 + ... + 613450098.

It is an arithmetic number, because the mean of its divisors is an integer number (6134500800).

Almost surely, 2^23311103021 is an apocalyptic number.

It is an amenable number.

23311103021 is a deficient number, since it is larger than the sum of its proper divisors (1226900179).

23311103021 is a wasteful number, since it uses less digits than its factorization.

23311103021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226900178.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 23311103021 its reverse (12030111332), we get a palindrome (35341214353).

The spelling of 23311103021 in words is "twenty-three billion, three hundred eleven million, one hundred three thousand, twenty-one".