113521523429 has 2 divisors, whose sum is σ = 113521523430. Its totient is φ = 113521523428.

The previous prime is 113521523417. The next prime is 113521523443. The reversal of 113521523429 is 924325125311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61368666529 + 52152856900 = 247727^2 + 228370^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113521523429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 113521523392 and 113521523401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113521523449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56760761714 + 56760761715.

It is an arithmetic number, because the mean of its divisors is an integer number (56760761715).

Almost surely, 2^113521523429 is an apocalyptic number.

It is an amenable number.

113521523429 is a deficient number, since it is larger than the sum of its proper divisors (1).

113521523429 is an equidigital number, since it uses as much as digits as its factorization.

113521523429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 38.

The spelling of 113521523429 in words is "one hundred thirteen billion, five hundred twenty-one million, five hundred twenty-three thousand, four hundred twenty-nine".