23113310021 has 4 divisors (see below), whose sum is σ = 23113702272. Its totient is φ = 23112917772.

The previous prime is 23113309997. The next prime is 23113310027. The reversal of 23113310021 is 12001331132.

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 a de Polignac number, because none of the positive numbers 2^k-23113310021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23113310027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87791 + ... + 232236.

It is an arithmetic number, because the mean of its divisors is an integer number (5778425568).

Almost surely, 2^23113310021 is an apocalyptic number.

It is an amenable number.

23113310021 is a deficient number, since it is larger than the sum of its proper divisors (392251).

23113310021 is an equidigital number, since it uses as much as digits as its factorization.

23113310021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392250.

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

Adding to 23113310021 its reverse (12001331132), we get a palindrome (35114641153).

The spelling of 23113310021 in words is "twenty-three billion, one hundred thirteen million, three hundred ten thousand, twenty-one".