2113044457 has 2 divisors, whose sum is σ = 2113044458. Its totient is φ = 2113044456.

The previous prime is 2113044389. The next prime is 2113044463. The reversal of 2113044457 is 7544403112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1195499776 + 917544681 = 34576^2 + 30291^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2113044457 is a prime.

It is not a weakly prime, because it can be changed into another prime (2113024457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056522228 + 1056522229.

It is an arithmetic number, because the mean of its divisors is an integer number (1056522229).

Almost surely, 2^2113044457 is an apocalyptic number.

It is an amenable number.

2113044457 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113044457 is an equidigital number, since it uses as much as digits as its factorization.

2113044457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 2113044457 is about 45967.8633068799. The cubic root of 2113044457 is about 1283.2251953559.

Adding to 2113044457 its reverse (7544403112), we get a palindrome (9657447569).

The spelling of 2113044457 in words is "two billion, one hundred thirteen million, forty-four thousand, four hundred fifty-seven".