1113042042 has 48 divisors (see below), whose sum is σ = 2845020672. Its totient is φ = 307752480.

The previous prime is 1113042031. The next prime is 1113042043. The reversal of 1113042042 is 2402403111.

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 (1113042043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138573 + ... + 146384.

It is an arithmetic number, because the mean of its divisors is an integer number (59271264).

Almost surely, 2^1113042042 is an apocalyptic number.

1113042042 is an abundant number, since it is smaller than the sum of its proper divisors (1731978630).

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

1113042042 is a wasteful number, since it uses less digits than its factorization.

1113042042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285003 (or 285000 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1113042042 is about 33362.2847239214. The cubic root of 1113042042 is about 1036.3438065500.

Adding to 1113042042 its reverse (2402403111), we get a palindrome (3515445153).

The spelling of 1113042042 in words is "one billion, one hundred thirteen million, forty-two thousand, forty-two".