23012320023 has 48 divisors (see below), whose sum is σ = 42826766080. Its totient is φ = 11954440080.

The previous prime is 23012319983. The next prime is 23012320039. The reversal of 23012320023 is 32002321032.

It is a happy number.

It is not a de Polignac number, because 23012320023 - 2²² = 23008125719 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23012319978 and 23012320005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23012320063) 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 47 ways as a sum of consecutive naturals, for example, 480265 + ... + 526002.

Almost surely, 2^23012320023 is an apocalyptic number.

23012320023 is a deficient number, since it is larger than the sum of its proper divisors (19814446057).

23012320023 is a wasteful number, since it uses less digits than its factorization.

23012320023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006305 (or 1006288 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 23012320023 its reverse (32002321032), we get a palindrome (55014641055).

The spelling of 23012320023 in words is "twenty-three billion, twelve million, three hundred twenty thousand, twenty-three".