23000021023 has 4 divisors (see below), whose sum is σ = 26285738320. Its totient is φ = 19714303728.

The previous prime is 23000020963. The next prime is 23000021027. The reversal of 23000021023 is 32012000032.

It is a happy number.

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

It is not a de Polignac number, because 23000021023 - 2²⁹ = 22463150111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23000020994 and 23000021012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23000021027) 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, 1642858638 + ... + 1642858651.

It is an arithmetic number, because the mean of its divisors is an integer number (6571434580).

Almost surely, 2^23000021023 is an apocalyptic number.

23000021023 is a deficient number, since it is larger than the sum of its proper divisors (3285717297).

23000021023 is an equidigital number, since it uses as much as digits as its factorization.

23000021023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3285717296.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 23000021023 its reverse (32012000032), we get a palindrome (55012021055).

The spelling of 23000021023 in words is "twenty-three billion, twenty-one thousand, twenty-three".