21124113523299 has 10 divisors (see below), whose sum is σ = 31555774522580. Its totient is φ = 14082742348812.

The previous prime is 21124113523231. The next prime is 21124113523307. The reversal of 21124113523299 is 99232531142112.

21124113523299 is a `hidden beast` number, since 2 + 1 + 1 + 2 + 4 + 1 + 1 + 352 + 3 + 299 = 666.

It is not a de Polignac number, because 21124113523299 - 2⁸ = 21124113523043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21124113523099) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 130395762409 + ... + 130395762570.

It is an arithmetic number, because the mean of its divisors is an integer number (3155577452258).

Almost surely, 2^{21124113523299} is an apocalyptic number.

21124113523299 is a deficient number, since it is larger than the sum of its proper divisors (10431660999281).

21124113523299 is an equidigital number, since it uses as much as digits as its factorization.

21124113523299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260791524991 (or 260791524982 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The spelling of 21124113523299 in words is "twenty-one trillion, one hundred twenty-four billion, one hundred thirteen million, five hundred twenty-three thousand, two hundred ninety-nine".