23021320103 has 4 divisors (see below), whose sum is σ = 24022247088. Its totient is φ = 22020393120.

The previous prime is 23021320061. The next prime is 23021320111. The reversal of 23021320103 is 30102312032.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23021320103 - 2²⁸ = 22752884647 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 (23021320123) 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, 500463458 + ... + 500463503.

It is an arithmetic number, because the mean of its divisors is an integer number (6005561772).

Almost surely, 2^23021320103 is an apocalyptic number.

23021320103 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

23021320103 is a deficient number, since it is larger than the sum of its proper divisors (1000926985).

23021320103 is a wasteful number, since it uses less digits than its factorization.

23021320103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000926984.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 23021320103 its reverse (30102312032), we get a palindrome (53123632135).

The spelling of 23021320103 in words is "twenty-three billion, twenty-one million, three hundred twenty thousand, one hundred three".