2113384457 has 2 divisors, whose sum is σ = 2113384458. Its totient is φ = 2113384456.

The previous prime is 2113384453. The next prime is 2113384489. The reversal of 2113384457 is 7544833112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2110575481 + 2808976 = 45941^2 + 1676^2 .

It is a cyclic number.

It is not a de Polignac number, because 2113384457 - 2² = 2113384453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2113384457.

It is not a weakly prime, because it can be changed into another prime (2113384453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056692228 + 1056692229.

It is an arithmetic number, because the mean of its divisors is an integer number (1056692229).

Almost surely, 2^2113384457 is an apocalyptic number.

It is an amenable number.

2113384457 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113384457 is an equidigital number, since it uses as much as digits as its factorization.

2113384457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 38.

The square root of 2113384457 is about 45971.5613939749. The cubic root of 2113384457 is about 1283.2940175658.

The spelling of 2113384457 in words is "two billion, one hundred thirteen million, three hundred eighty-four thousand, four hundred fifty-seven".