21102242343004 has 12 divisors (see below), whose sum is σ = 37120265677264. Its totient is φ = 10496452149504.

The previous prime is 21102242342999. The next prime is 21102242343011. The reversal of 21102242343004 is 40034324220112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13667254632 + ... + 13667256175.

Almost surely, 2^{21102242343004} is an apocalyptic number.

It is an amenable number.

21102242343004 is a deficient number, since it is larger than the sum of its proper divisors (16018023334260).

21102242343004 is a wasteful number, since it uses less digits than its factorization.

21102242343004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27334511004 (or 27334511002 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 21102242343004 its reverse (40034324220112), we get a palindrome (61136566563116).

The spelling of 21102242343004 in words is "twenty-one trillion, one hundred two billion, two hundred forty-two million, three hundred forty-three thousand, four".