21102242343003 has 12 divisors (see below), whose sum is σ = 30482783240728. Its totient is φ = 14067346243680.

The previous prime is 21102242342999. The next prime is 21102242343011. The reversal of 21102242343003 is 30034324220112.

21102242343003 is a `hidden beast` number, since 2 + 1 + 1 + 0 + 224 + 2 + 3 + 430 + 0 + 3 = 666.

It is not a de Polignac number, because 21102242343003 - 2² = 21102242342999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21102242343803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67779253 + ... + 68089878.

Almost surely, 2^{21102242343003} is an apocalyptic number.

21102242343003 is a deficient number, since it is larger than the sum of its proper divisors (9380540897725).

21102242343003 is a wasteful number, since it uses less digits than its factorization.

21102242343003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135886394 (or 135886391 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 21102242343003 its reverse (30034324220112), we get a palindrome (51136566563115).

The spelling of 21102242343003 in words is "twenty-one trillion, one hundred two billion, two hundred forty-two million, three hundred forty-three thousand, three".