23502165203 has 4 divisors (see below), whose sum is σ = 25638725688. Its totient is φ = 21365604720.

The previous prime is 23502165173. The next prime is 23502165209. The reversal of 23502165203 is 30256120532.

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

It is a cyclic number.

It is not a de Polignac number, because 23502165203 - 2³⁰ = 22428423379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23502165209) 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, 1068280226 + ... + 1068280247.

It is an arithmetic number, because the mean of its divisors is an integer number (6409681422).

Almost surely, 2^23502165203 is an apocalyptic number.

23502165203 is a deficient number, since it is larger than the sum of its proper divisors (2136560485).

23502165203 is a wasteful number, since it uses less digits than its factorization.

23502165203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2136560484.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 23502165203 its reverse (30256120532), we get a palindrome (53758285735).

The spelling of 23502165203 in words is "twenty-three billion, five hundred two million, one hundred sixty-five thousand, two hundred three".