1113131318 has 8 divisors (see below), whose sum is σ = 1798135248. Its totient is φ = 513752904.

The previous prime is 1113131317. The next prime is 1113131323. The reversal of 1113131318 is 8131313111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1113131318² = 2478122662224834248, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1113131293 and 1113131302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113131311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21406346 + ... + 21406397.

It is an arithmetic number, because the mean of its divisors is an integer number (224766906).

Almost surely, 2^1113131318 is an apocalyptic number.

1113131318 is a deficient number, since it is larger than the sum of its proper divisors (685003930).

1113131318 is a wasteful number, since it uses less digits than its factorization.

1113131318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42812758.

The product of its digits is 216, while the sum is 23.

The square root of 1113131318 is about 33363.6226750034. The cubic root of 1113131318 is about 1036.3715138460.

Adding to 1113131318 its reverse (8131313111), we get a palindrome (9244444429).

The spelling of 1113131318 in words is "one billion, one hundred thirteen million, one hundred thirty-one thousand, three hundred eighteen".