2181314263 has 2 divisors, whose sum is σ = 2181314264. Its totient is φ = 2181314262.

The previous prime is 2181314237. The next prime is 2181314299. The reversal of 2181314263 is 3624131812.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2181314263 - 2⁵ = 2181314231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2181314203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1090657131 + 1090657132.

It is an arithmetic number, because the mean of its divisors is an integer number (1090657132).

Almost surely, 2^2181314263 is an apocalyptic number.

2181314263 is a deficient number, since it is larger than the sum of its proper divisors (1).

2181314263 is an equidigital number, since it uses as much as digits as its factorization.

2181314263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 31.

The square root of 2181314263 is about 46704.5422095111. The cubic root of 2181314263 is about 1296.8987739992.

The spelling of 2181314263 in words is "two billion, one hundred eighty-one million, three hundred fourteen thousand, two hundred sixty-three".