23023220309 has 8 divisors (see below), whose sum is σ = 24381053208. Its totient is φ = 21665779200.

The previous prime is 23023220249. The next prime is 23023220357. The reversal of 23023220309 is 90302232032.

It can be written as a sum of positive squares in 4 ways, for example, as 16274104900 + 6749115409 = 127570^2 + 82153^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23023220309 - 2²⁸ = 22754784853 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 (23023220359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27659 + ... + 216359.

It is an arithmetic number, because the mean of its divisors is an integer number (3047631651).

Almost surely, 2^23023220309 is an apocalyptic number.

It is an amenable number.

23023220309 is a deficient number, since it is larger than the sum of its proper divisors (1357832899).

23023220309 is a wasteful number, since it uses less digits than its factorization.

23023220309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195895.

The product of its (nonzero) digits is 3888, while the sum is 26.

The spelling of 23023220309 in words is "twenty-three billion, twenty-three million, two hundred twenty thousand, three hundred nine".