11515204142389 has 2 divisors, whose sum is σ = 11515204142390. Its totient is φ = 11515204142388.

The previous prime is 11515204142383. The next prime is 11515204142521. The reversal of 11515204142389 is 98324140251511.

11515204142389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9330031340100 + 2185172802289 = 3054510^2 + 1478233^2 .

It is a cyclic number.

It is not a de Polignac number, because 11515204142389 - 2⁵ = 11515204142357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11515204142383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5757602071194 + 5757602071195.

It is an arithmetic number, because the mean of its divisors is an integer number (5757602071195).

Almost surely, 2^{11515204142389} is an apocalyptic number.

It is an amenable number.

11515204142389 is a deficient number, since it is larger than the sum of its proper divisors (1).

11515204142389 is an equidigital number, since it uses as much as digits as its factorization.

11515204142389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 345600, while the sum is 46.

The spelling of 11515204142389 in words is "eleven trillion, five hundred fifteen billion, two hundred four million, one hundred forty-two thousand, three hundred eighty-nine".