111142040515 has 16 divisors (see below), whose sum is σ = 146471522400. Its totient is φ = 80288081920.

The previous prime is 111142040509. The next prime is 111142040533. The reversal of 111142040515 is 515040241111.

It is a happy number.

It is not a de Polignac number, because 111142040515 - 2⁵ = 111142040483 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111142040515.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6772894 + ... + 6789283.

It is an arithmetic number, because the mean of its divisors is an integer number (9154470150).

Almost surely, 2^111142040515 is an apocalyptic number.

111142040515 is a deficient number, since it is larger than the sum of its proper divisors (35329481885).

111142040515 is a wasteful number, since it uses less digits than its factorization.

111142040515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13562342.

The product of its (nonzero) digits is 800, while the sum is 25.

Adding to 111142040515 its reverse (515040241111), we get a palindrome (626182281626).

The spelling of 111142040515 in words is "one hundred eleven billion, one hundred forty-two million, forty thousand, five hundred fifteen".