23203111323 has 16 divisors (see below), whose sum is σ = 36576334080. Its totient is φ = 12801716256.

The previous prime is 23203111303. The next prime is 23203111331. The reversal of 23203111323 is 32311130232.

It is not a de Polignac number, because 23203111323 - 2¹⁴ = 23203094939 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 23203111323.

It is not an unprimeable number, because it can be changed into a prime (23203111303) 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 15 ways as a sum of consecutive naturals, for example, 19049565 + ... + 19050782.

It is an arithmetic number, because the mean of its divisors is an integer number (2286020880).

Almost surely, 2^23203111323 is an apocalyptic number.

23203111323 is a deficient number, since it is larger than the sum of its proper divisors (13373222757).

23203111323 is a wasteful number, since it uses less digits than its factorization.

23203111323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38100386.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 23203111323 its reverse (32311130232), we get a palindrome (55514241555).

The spelling of 23203111323 in words is "twenty-three billion, two hundred three million, one hundred eleven thousand, three hundred twenty-three".