23021003643 has 8 divisors (see below), whose sum is σ = 33485096256. Its totient is φ = 13952123400.

The previous prime is 23021003617. The next prime is 23021003647. The reversal of 23021003643 is 34630012032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23021003643 - 2²⁵ = 22987449211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23021003647) 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, 348803053 + ... + 348803118.

It is an arithmetic number, because the mean of its divisors is an integer number (4185637032).

Almost surely, 2^23021003643 is an apocalyptic number.

23021003643 is a deficient number, since it is larger than the sum of its proper divisors (10464092613).

23021003643 is a wasteful number, since it uses less digits than its factorization.

23021003643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697606185.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 23021003643 its reverse (34630012032), we get a palindrome (57651015675).

The spelling of 23021003643 in words is "twenty-three billion, twenty-one million, three thousand, six hundred forty-three".