13115525420429 has 2 divisors, whose sum is σ = 13115525420430. Its totient is φ = 13115525420428.

The previous prime is 13115525420411. The next prime is 13115525420449. The reversal of 13115525420429 is 92402452551131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7148751901225 + 5966773519204 = 2673715^2 + 2442698^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13115525420429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13115525420429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13115525420449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6557762710214 + 6557762710215.

It is an arithmetic number, because the mean of its divisors is an integer number (6557762710215).

Almost surely, 2^{13115525420429} is an apocalyptic number.

It is an amenable number.

13115525420429 is a deficient number, since it is larger than the sum of its proper divisors (1).

13115525420429 is an equidigital number, since it uses as much as digits as its factorization.

13115525420429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432000, while the sum is 44.

The spelling of 13115525420429 in words is "thirteen trillion, one hundred fifteen billion, five hundred twenty-five million, four hundred twenty thousand, four hundred twenty-nine".