2113163391 has 32 divisors (see below), whose sum is σ = 2941747200. Its totient is φ = 1347827040.

The previous prime is 2113163383. The next prime is 2113163399. The reversal of 2113163391 is 1933613112.

It is an interprime number because it is at equal distance from previous prime (2113163383) and next prime (2113163399).

It is not a de Polignac number, because 2113163391 - 2³ = 2113163383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113163399) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5575440 + ... + 5575818.

It is an arithmetic number, because the mean of its divisors is an integer number (91929600).

Almost surely, 2^2113163391 is an apocalyptic number.

2113163391 is a deficient number, since it is larger than the sum of its proper divisors (828583809).

2113163391 is a wasteful number, since it uses less digits than its factorization.

2113163391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939.

The product of its digits is 2916, while the sum is 30.

The square root of 2113163391 is about 45969.1569533312. The cubic root of 2113163391 is about 1283.2492706092.

The spelling of 2113163391 in words is "two billion, one hundred thirteen million, one hundred sixty-three thousand, three hundred ninety-one".