2113220591 has 2 divisors, whose sum is σ = 2113220592. Its totient is φ = 2113220590.

The previous prime is 2113220573. The next prime is 2113220609. The reversal of 2113220591 is 1950223112.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (2113220573) and next prime (2113220609).

It is a cyclic number.

It is not a de Polignac number, because 2113220591 - 2¹⁴ = 2113204207 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2113220591.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2113220521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056610295 + 1056610296.

It is an arithmetic number, because the mean of its divisors is an integer number (1056610296).

Almost surely, 2^2113220591 is an apocalyptic number.

2113220591 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113220591 is an equidigital number, since it uses as much as digits as its factorization.

2113220591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 2113220591 is about 45969.7791054079. The cubic root of 2113220591 is about 1283.2608490160.

The spelling of 2113220591 in words is "two billion, one hundred thirteen million, two hundred twenty thousand, five hundred ninety-one".