2116104281 has 2 divisors, whose sum is σ = 2116104282. Its totient is φ = 2116104280.

The previous prime is 2116104269. The next prime is 2116104283. The reversal of 2116104281 is 1824016112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2084744281 + 31360000 = 45659^2 + 5600^2 .

It is a cyclic number.

It is not a de Polignac number, because 2116104281 - 2¹⁰ = 2116103257 is a prime.

It is a super-2 number, since 2×2116104281² = 8955794656133053922, which contains 22 as substring.

Together with 2116104283, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2116104281.

It is not a weakly prime, because it can be changed into another prime (2116104283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058052140 + 1058052141.

It is an arithmetic number, because the mean of its divisors is an integer number (1058052141).

Almost surely, 2^2116104281 is an apocalyptic number.

It is an amenable number.

2116104281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2116104281 is an equidigital number, since it uses as much as digits as its factorization.

2116104281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 2116104281 is about 46001.1334751656. The cubic root of 2116104281 is about 1283.8442941027.

The spelling of 2116104281 in words is "two billion, one hundred sixteen million, one hundred four thousand, two hundred eighty-one".