23202011205 has 12 divisors (see below), whose sum is σ = 40216819500. Its totient is φ = 12374405952.

The previous prime is 23202011123. The next prime is 23202011207. The reversal of 23202011205 is 50211020232.

It can be written as a sum of positive squares in 2 ways, for example, as 18098051841 + 5103959364 = 134529^2 + 71442^2 .

It is a de Polignac number, because none of the positive numbers 2^k-23202011205 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23202011207) 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 11 ways as a sum of consecutive naturals, for example, 257800080 + ... + 257800169.

It is an arithmetic number, because the mean of its divisors is an integer number (3351401625).

Almost surely, 2^23202011205 is an apocalyptic number.

It is an amenable number.

23202011205 is a deficient number, since it is larger than the sum of its proper divisors (17014808295).

23202011205 is a wasteful number, since it uses less digits than its factorization.

23202011205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515600260 (or 515600257 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

Adding to 23202011205 its reverse (50211020232), we get a palindrome (73413031437).

The spelling of 23202011205 in words is "twenty-three billion, two hundred two million, eleven thousand, two hundred five".