23021011002 has 64 divisors (see below), whose sum is σ = 53394992640. Its totient is φ = 6543432000.

The previous prime is 23021010979. The next prime is 23021011031. The reversal of 23021011002 is 20011012032.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35773 + ... + 217535.

It is an arithmetic number, because the mean of its divisors is an integer number (834296760).

Almost surely, 2^23021011002 is an apocalyptic number.

23021011002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 23021011002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26697496320).

23021011002 is an abundant number, since it is smaller than the sum of its proper divisors (30373981638).

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

23021011002 is a wasteful number, since it uses less digits than its factorization.

23021011002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181899.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 23021011002 its reverse (20011012032), we get a palindrome (43032023034).

The spelling of 23021011002 in words is "twenty-three billion, twenty-one million, eleven thousand, two".