2113113245 has 4 divisors (see below), whose sum is σ = 2535735900. Its totient is φ = 1690490592.

The previous prime is 2113113229. The next prime is 2113113257. The reversal of 2113113245 is 5423113112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1675592356 + 437520889 = 40934^2 + 20917^2 .

It is a cyclic number.

It is not a de Polignac number, because 2113113245 - 2⁴ = 2113113229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2113113245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211311320 + ... + 211311329.

It is an arithmetic number, because the mean of its divisors is an integer number (633933975).

Almost surely, 2^2113113245 is an apocalyptic number.

It is an amenable number.

2113113245 is a deficient number, since it is larger than the sum of its proper divisors (422622655).

2113113245 is an equidigital number, since it uses as much as digits as its factorization.

2113113245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422622654.

The product of its digits is 720, while the sum is 23.

The square root of 2113113245 is about 45968.6115191660. The cubic root of 2113113245 is about 1283.2391198991.

Adding to 2113113245 its reverse (5423113112), we get a palindrome (7536226357).

The spelling of 2113113245 in words is "two billion, one hundred thirteen million, one hundred thirteen thousand, two hundred forty-five".