21023233002 has 48 divisors (see below), whose sum is σ = 45802224000. Its totient is φ = 6969074112.

The previous prime is 21023232977. The next prime is 21023233027. The reversal of 21023233002 is 20033232012.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21023232977) and next prime (21023233027).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 3692574 + ... + 3698262.

It is an arithmetic number, because the mean of its divisors is an integer number (954213000).

Almost surely, 2^21023233002 is an apocalyptic number.

21023233002 is an abundant number, since it is smaller than the sum of its proper divisors (24778990998).

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

21023233002 is a wasteful number, since it uses less digits than its factorization.

21023233002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6795 (or 6792 counting only the distinct ones).

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

Adding to 21023233002 its reverse (20033232012), we get a palindrome (41056465014).

The spelling of 21023233002 in words is "twenty-one billion, twenty-three million, two hundred thirty-three thousand, two".