1113813816 has 16 divisors (see below), whose sum is σ = 2784534600. Its totient is φ = 371271264.

The previous prime is 1113813797. The next prime is 1113813887. The reversal of 1113813816 is 6183183111.

It is a super-3 number, since 3×1113813816³ (a number of 28 digits) contains 333 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23204431 + ... + 23204478.

Almost surely, 2^1113813816 is an apocalyptic number.

It is an amenable number.

1113813816 is an abundant number, since it is smaller than the sum of its proper divisors (1670720784).

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

1113813816 is a wasteful number, since it uses less digits than its factorization.

1113813816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46408918 (or 46408914 counting only the distinct ones).

The product of its digits is 3456, while the sum is 33.

The square root of 1113813816 is about 33373.8492835334. The cubic root of 1113813816 is about 1036.5832819044.

Adding to 1113813816 its reverse (6183183111), we get a palindrome (7296996927).

The spelling of 1113813816 in words is "one billion, one hundred thirteen million, eight hundred thirteen thousand, eight hundred sixteen".