11542130215 has 16 divisors (see below), whose sum is σ = 17268226560. Its totient is φ = 7195093920.

The previous prime is 11542130213. The next prime is 11542130231. The reversal of 11542130215 is 51203124511.

It is not a de Polignac number, because 11542130215 - 2¹ = 11542130213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11542130215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11542130213) 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 in 15 ways as a sum of consecutive naturals, for example, 14989395 + ... + 14990164.

It is an arithmetic number, because the mean of its divisors is an integer number (1079264160).

Almost surely, 2^11542130215 is an apocalyptic number.

11542130215 is a deficient number, since it is larger than the sum of its proper divisors (5726096345).

11542130215 is a wasteful number, since it uses less digits than its factorization.

11542130215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29979582.

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 11542130215 its reverse (51203124511), we get a palindrome (62745254726).

The spelling of 11542130215 in words is "eleven billion, five hundred forty-two million, one hundred thirty thousand, two hundred fifteen".