23200021005 has 64 divisors (see below), whose sum is σ = 43247001600. Its totient is φ = 10400578560.

The previous prime is 23200021001. The next prime is 23200021021. The reversal of 23200021005 is 50012000232.

It is not a de Polignac number, because 23200021005 - 2² = 23200021001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23200021001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2665701 + ... + 2674389.

It is an arithmetic number, because the mean of its divisors is an integer number (675734400).

Almost surely, 2^23200021005 is an apocalyptic number.

It is an amenable number.

23200021005 is a deficient number, since it is larger than the sum of its proper divisors (20046980595).

23200021005 is a wasteful number, since it uses less digits than its factorization.

23200021005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9194.

The product of its (nonzero) digits is 120, while the sum is 15.

Adding to 23200021005 its reverse (50012000232), we get a palindrome (73212021237).

The spelling of 23200021005 in words is "twenty-three billion, two hundred million, twenty-one thousand, five".