23012442665 has 4 divisors (see below), whose sum is σ = 27614931204. Its totient is φ = 18409954128.

The previous prime is 23012442647. The next prime is 23012442671. The reversal of 23012442665 is 56624421032.

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

It can be written as a sum of positive squares in 2 ways, for example, as 14145772096 + 8866670569 = 118936^2 + 94163^2 .

It is a cyclic number.

It is not a de Polignac number, because 23012442665 - 2³⁰ = 21938700841 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2301244262 + ... + 2301244271.

It is an arithmetic number, because the mean of its divisors is an integer number (6903732801).

Almost surely, 2^23012442665 is an apocalyptic number.

It is an amenable number.

23012442665 is a deficient number, since it is larger than the sum of its proper divisors (4602488539).

23012442665 is an equidigital number, since it uses as much as digits as its factorization.

23012442665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4602488538.

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 23012442665 its reverse (56624421032), we get a palindrome (79636863697).

The spelling of 23012442665 in words is "twenty-three billion, twelve million, four hundred forty-two thousand, six hundred sixty-five".