21124113523319 has 2 divisors, whose sum is σ = 21124113523320. Its totient is φ = 21124113523318.

The previous prime is 21124113523307. The next prime is 21124113523367. The reversal of 21124113523319 is 91332531142112.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21124113523319 is a prime.

It is a super-2 number, since 2×21124113523319² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21124113523369) 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 as a sum of consecutive naturals, namely, 10562056761659 + 10562056761660.

It is an arithmetic number, because the mean of its divisors is an integer number (10562056761660).

Almost surely, 2^{21124113523319} is an apocalyptic number.

21124113523319 is a deficient number, since it is larger than the sum of its proper divisors (1).

21124113523319 is an equidigital number, since it uses as much as digits as its factorization.

21124113523319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 38.

The spelling of 21124113523319 in words is "twenty-one trillion, one hundred twenty-four billion, one hundred thirteen million, five hundred twenty-three thousand, three hundred nineteen".