23012313109 has 6 divisors (see below), whose sum is σ = 24445606274. Its totient is φ = 21658647360.

The previous prime is 23012313097. The next prime is 23012313127. The reversal of 23012313109 is 90131321032.

It can be written as a sum of positive squares in 3 ways, for example, as 15113014225 + 7899298884 = 122935^2 + 88878^2 .

It is a de Polignac number, because none of the positive numbers 2^k-23012313109 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 (23012313179) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39813402 + ... + 39813979.

Almost surely, 2^23012313109 is an apocalyptic number.

It is an amenable number.

23012313109 is a deficient number, since it is larger than the sum of its proper divisors (1433293165).

23012313109 is an equidigital number, since it uses as much as digits as its factorization.

23012313109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79627415 (or 79627398 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 25.

The spelling of 23012313109 in words is "twenty-three billion, twelve million, three hundred thirteen thousand, one hundred nine".