11515204142425 has 6 divisors (see below), whose sum is σ = 14278853136638. Its totient is φ = 9212163313920.

The previous prime is 11515204142389. The next prime is 11515204142521. The reversal of 11515204142425 is 52424140251511.

It is a happy number.

11515204142425 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 2730637271296 + 8784566871129 = 1652464^2 + 2963877^2 .

It is not a de Polignac number, because 11515204142425 - 2⁹ = 11515204141913 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 230304082824 + ... + 230304082873.

Almost surely, 2^{11515204142425} is an apocalyptic number.

It is an amenable number.

11515204142425 is a deficient number, since it is larger than the sum of its proper divisors (2763648994213).

11515204142425 is an equidigital number, since it uses as much as digits as its factorization.

11515204142425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460608165707 (or 460608165702 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 37.

Adding to 11515204142425 its reverse (52424140251511), we get a palindrome (63939344393936).

The spelling of 11515204142425 in words is "eleven trillion, five hundred fifteen billion, two hundred four million, one hundred forty-two thousand, four hundred twenty-five".