2113311886 has 12 divisors (see below), whose sum is σ = 3687513768. Its totient is φ = 905705052.

The previous prime is 2113311859. The next prime is 2113311899. The reversal of 2113311886 is 6881133112.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 10782106 + ... + 10782301.

It is an arithmetic number, because the mean of its divisors is an integer number (307292814).

Almost surely, 2^2113311886 is an apocalyptic number.

2113311886 is a deficient number, since it is larger than the sum of its proper divisors (1574201882).

2113311886 is a wasteful number, since it uses less digits than its factorization.

2113311886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21564423 (or 21564416 counting only the distinct ones).

The product of its digits is 6912, while the sum is 34.

The square root of 2113311886 is about 45970.7720840101. The cubic root of 2113311886 is about 1283.2793284896.

Adding to 2113311886 its reverse (6881133112), we get a palindrome (8994444998).

The spelling of 2113311886 in words is "two billion, one hundred thirteen million, three hundred eleven thousand, eight hundred eighty-six".