113111136 has 108 divisors (see below), whose sum is σ = 333847332. Its totient is φ = 36325632.

The previous prime is 113111099. The next prime is 113111137. The reversal of 113111136 is 631111311.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113111137) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 241975 + ... + 242441.

It is an arithmetic number, because the mean of its divisors is an integer number (3091179).

Almost surely, 2^113111136 is an apocalyptic number.

113111136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113111136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166923666).

113111136 is an abundant number, since it is smaller than the sum of its proper divisors (220736196).

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

113111136 is a wasteful number, since it uses less digits than its factorization.

113111136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541 (or 501 counting only the distinct ones).

The product of its digits is 54, while the sum is 18.

The square root of 113111136 is about 10635.3719257955. The cubic root of 113111136 is about 483.6172554066.

Adding to 113111136 its reverse (631111311), we get a palindrome (744222447).

The spelling of 113111136 in words is "one hundred thirteen million, one hundred eleven thousand, one hundred thirty-six".