113135111505 has 64 divisors (see below), whose sum is σ = 216711264000. Its totient is φ = 55668819456.

The previous prime is 113135111473. The next prime is 113135111513. The reversal of 113135111505 is 505111531311.

113135111505 is a `hidden beast` number, since 1 + 13 + 1 + 35 + 111 + 505 = 666.

It is not a de Polignac number, because 113135111505 - 2⁵ = 113135111473 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3650766 + ... + 3681624.

It is an arithmetic number, because the mean of its divisors is an integer number (3386113500).

Almost surely, 2^113135111505 is an apocalyptic number.

113135111505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

113135111505 is a deficient number, since it is larger than the sum of its proper divisors (103576152495).

113135111505 is a wasteful number, since it uses less digits than its factorization.

113135111505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32975 (or 32969 counting only the distinct ones).

The product of its (nonzero) digits is 1125, while the sum is 27.

Adding to 113135111505 its reverse (505111531311), we get a palindrome (618246642816).

The spelling of 113135111505 in words is "one hundred thirteen billion, one hundred thirty-five million, one hundred eleven thousand, five hundred five".