1116399213 has 8 divisors (see below), whose sum is σ = 1653924800. Its totient is φ = 744266124.

The previous prime is 1116399203. The next prime is 1116399217. The reversal of 1116399213 is 3129936111.

1116399213 is a `hidden beast` number, since 1 + 1 + 1 + 639 + 9 + 2 + 13 = 666.

It is not a de Polignac number, because 1116399213 - 2¹⁰ = 1116398189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1116399217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20674033 + ... + 20674086.

It is an arithmetic number, because the mean of its divisors is an integer number (206740600).

Almost surely, 2^1116399213 is an apocalyptic number.

It is an amenable number.

1116399213 is a deficient number, since it is larger than the sum of its proper divisors (537525587).

1116399213 is an equidigital number, since it uses as much as digits as its factorization.

1116399213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41348128 (or 41348122 counting only the distinct ones).

The product of its digits is 8748, while the sum is 36.

The square root of 1116399213 is about 33412.5607070156. The cubic root of 1116399213 is about 1037.3847050087.

The spelling of 1116399213 in words is "one billion, one hundred sixteen million, three hundred ninety-nine thousand, two hundred thirteen".