2113276687 has 2 divisors, whose sum is σ = 2113276688. Its totient is φ = 2113276686.

The previous prime is 2113276601. The next prime is 2113276723. The reversal of 2113276687 is 7866723112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2113276687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2113274687) by changing a digit.

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 as a sum of consecutive naturals, namely, 1056638343 + 1056638344.

It is an arithmetic number, because the mean of its divisors is an integer number (1056638344).

Almost surely, 2^2113276687 is an apocalyptic number.

2113276687 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113276687 is an equidigital number, since it uses as much as digits as its factorization.

2113276687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 43.

The square root of 2113276687 is about 45970.3892413366. The cubic root of 2113276687 is about 1283.2722037485.

Adding to 2113276687 its reverse (7866723112), we get a palindrome (9979999799).

The spelling of 2113276687 in words is "two billion, one hundred thirteen million, two hundred seventy-six thousand, six hundred eighty-seven".