23113333021 has 4 divisors (see below), whose sum is σ = 23605106112. Its totient is φ = 22621559932.

The previous prime is 23113332967. The next prime is 23113333027. The reversal of 23113333021 is 12033331132.

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 23113333021 - 2⁹ = 23113332509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23113332983 and 23113333001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23113333027) 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, 245886475 + ... + 245886568.

It is an arithmetic number, because the mean of its divisors is an integer number (5901276528).

Almost surely, 2^23113333021 is an apocalyptic number.

It is an amenable number.

23113333021 is a deficient number, since it is larger than the sum of its proper divisors (491773091).

23113333021 is an equidigital number, since it uses as much as digits as its factorization.

23113333021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491773090.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 23113333021 its reverse (12033331132), we get a palindrome (35146664153).

The spelling of 23113333021 in words is "twenty-three billion, one hundred thirteen million, three hundred thirty-three thousand, twenty-one".