113115042 has 48 divisors (see below), whose sum is σ = 269129952. Its totient is φ = 35484480.

The previous prime is 113115029. The next prime is 113115043. The reversal of 113115042 is 240511311.

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

It is not an unprimeable number, because it can be changed into a prime (113115043) by changing a digit.

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, 1417 + ... + 15107.

It is an arithmetic number, because the mean of its divisors is an integer number (5606874).

Almost surely, 2^113115042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113115042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134564976).

113115042 is an abundant number, since it is smaller than the sum of its proper divisors (156014910).

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

113115042 is a wasteful number, since it uses less digits than its factorization.

113115042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13725 (or 13713 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 113115042 is about 10635.5555567163. Note that the first 5 decimals coincide. The cubic root of 113115042 is about 483.6228221655.

Adding to 113115042 its reverse (240511311), we get a palindrome (353626353).

The spelling of 113115042 in words is "one hundred thirteen million, one hundred fifteen thousand, forty-two".