2731216113 has 12 divisors (see below), whose sum is σ = 3946193680. Its totient is φ = 1820301336.

The previous prime is 2731216109. The next prime is 2731216231. The reversal of 2731216113 is 3116121372.

2731216113 is a `hidden beast` number, since 27 + 3 + 1 + 21 + 611 + 3 = 666.

It is not a de Polignac number, because 2731216113 - 2² = 2731216109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2731216513) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6931 + ... + 74232.

Almost surely, 2^2731216113 is an apocalyptic number.

It is an amenable number.

2731216113 is a deficient number, since it is larger than the sum of its proper divisors (1214977567).

2731216113 is a wasteful number, since it uses less digits than its factorization.

2731216113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84908 (or 84905 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 2731216113 is about 52261.0381929024. The cubic root of 2731216113 is about 1397.8224844753.

Adding to 2731216113 its reverse (3116121372), we get a palindrome (5847337485).

The spelling of 2731216113 in words is "two billion, seven hundred thirty-one million, two hundred sixteen thousand, one hundred thirteen".