111012135516 has 72 divisors (see below), whose sum is σ = 282257377584. Its totient is φ = 36787599360.

The previous prime is 111012135491. The next prime is 111012135571. The reversal of 111012135516 is 615531210111.

111012135516 is a `hidden beast` number, since 1 + 1 + 1 + 0 + 12 + 135 + 516 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 111012135516.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 12411606 + ... + 12420546.

Almost surely, 2^111012135516 is an apocalyptic number.

It is an amenable number.

111012135516 is an abundant number, since it is smaller than the sum of its proper divisors (171245242068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111012135516 is a wasteful number, since it uses less digits than its factorization.

111012135516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10931 (or 10926 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 27.

Adding to 111012135516 its reverse (615531210111), we get a palindrome (726543345627).

The spelling of 111012135516 in words is "one hundred eleven billion, twelve million, one hundred thirty-five thousand, five hundred sixteen".