21113402414124 has 24 divisors (see below), whose sum is σ = 50410294137280. Its totient is φ = 6874131018384.

The previous prime is 21113402414089. The next prime is 21113402414227. The reversal of 21113402414124 is 42141420431112.

It is a junction number, because it is equal to n+sod(n) for n = 21113402414091 and 21113402414100.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 20458722754 + ... + 20458723785.

Almost surely, 2^{21113402414124} is an apocalyptic number.

It is an amenable number.

21113402414124 is an abundant number, since it is smaller than the sum of its proper divisors (29296891723156).

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

21113402414124 is a wasteful number, since it uses less digits than its factorization.

21113402414124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40917446589 (or 40917446587 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

Adding to 21113402414124 its reverse (42141420431112), we get a palindrome (63254822845236).

The spelling of 21113402414124 in words is "twenty-one trillion, one hundred thirteen billion, four hundred two million, four hundred fourteen thousand, one hundred twenty-four".