23205115316 has 12 divisors (see below), whose sum is σ = 41165239332. Its totient is φ = 11443618368.

The previous prime is 23205115309. The next prime is 23205115319. The reversal of 23205115316 is 61351150232.

It can be written as a sum of positive squares in 2 ways, for example, as 7468416400 + 15736698916 = 86420^2 + 125446^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23205115319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39734495 + ... + 39735078.

It is an arithmetic number, because the mean of its divisors is an integer number (3430436611).

Almost surely, 2^23205115316 is an apocalyptic number.

It is an amenable number.

23205115316 is a deficient number, since it is larger than the sum of its proper divisors (17960124016).

23205115316 is a wasteful number, since it uses less digits than its factorization.

23205115316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79469650 (or 79469648 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 29.

Adding to 23205115316 its reverse (61351150232), we get a palindrome (84556265548).

The spelling of 23205115316 in words is "twenty-three billion, two hundred five million, one hundred fifteen thousand, three hundred sixteen".