23203113402 has 16 divisors (see below), whose sum is σ = 53035687872. Its totient is φ = 6629460960.

The previous prime is 23203113397. The next prime is 23203113403. The reversal of 23203113402 is 20431130232.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (23203113403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276227499 + ... + 276227582.

It is an arithmetic number, because the mean of its divisors is an integer number (3314730492).

Almost surely, 2^23203113402 is an apocalyptic number.

23203113402 is an abundant number, since it is smaller than the sum of its proper divisors (29832574470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23203113402 is a wasteful number, since it uses less digits than its factorization.

23203113402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552455093.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 23203113402 its reverse (20431130232), we get a palindrome (43634243634).

The spelling of 23203113402 in words is "twenty-three billion, two hundred three million, one hundred thirteen thousand, four hundred two".