2113565271 has 16 divisors (see below), whose sum is σ = 2883291648. Its totient is φ = 1376748000.

The previous prime is 2113565227. The next prime is 2113565281. The reversal of 2113565271 is 1725653112.

It is not a de Polignac number, because 2113565271 - 2⁹ = 2113564759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113565281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10611 + ... + 65876.

It is an arithmetic number, because the mean of its divisors is an integer number (180205728).

Almost surely, 2^2113565271 is an apocalyptic number.

2113565271 is a deficient number, since it is larger than the sum of its proper divisors (769726377).

2113565271 is a wasteful number, since it uses less digits than its factorization.

2113565271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76702.

The product of its digits is 12600, while the sum is 33.

The square root of 2113565271 is about 45973.5279372815. The cubic root of 2113565271 is about 1283.3306146154.

The spelling of 2113565271 in words is "two billion, one hundred thirteen million, five hundred sixty-five thousand, two hundred seventy-one".