23233561013 has 4 divisors (see below), whose sum is σ = 25020758028. Its totient is φ = 21446364000.

The previous prime is 23233561009. The next prime is 23233561031. The reversal of 23233561013 is 31016533232.

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 2352444004 + 20881117009 = 48502^2 + 144503^2 .

It is a cyclic number.

It is not a de Polignac number, because 23233561013 - 2² = 23233561009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23233561063) 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, 893598488 + ... + 893598513.

It is an arithmetic number, because the mean of its divisors is an integer number (6255189507).

Almost surely, 2^23233561013 is an apocalyptic number.

It is an amenable number.

23233561013 is a deficient number, since it is larger than the sum of its proper divisors (1787197015).

23233561013 is a wasteful number, since it uses less digits than its factorization.

23233561013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1787197014.

The product of its (nonzero) digits is 9720, while the sum is 29.

The spelling of 23233561013 in words is "twenty-three billion, two hundred thirty-three million, five hundred sixty-one thousand, thirteen".