2113331243 has 4 divisors (see below), whose sum is σ = 2115092088. Its totient is φ = 2111570400.

The previous prime is 2113331197. The next prime is 2113331263. The reversal of 2113331243 is 3421333112.

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

It is a cyclic number.

It is not a de Polignac number, because 2113331243 - 2⁸ = 2113330987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2113331263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 878621 + ... + 881022.

It is an arithmetic number, because the mean of its divisors is an integer number (528773022).

Almost surely, 2^2113331243 is an apocalyptic number.

2113331243 is a deficient number, since it is larger than the sum of its proper divisors (1760845).

2113331243 is a wasteful number, since it uses less digits than its factorization.

2113331243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1760844.

The product of its digits is 1296, while the sum is 23.

The square root of 2113331243 is about 45970.9826194742. The cubic root of 2113331243 is about 1283.2832465675.

Adding to 2113331243 its reverse (3421333112), we get a palindrome (5534664355).

The spelling of 2113331243 in words is "two billion, one hundred thirteen million, three hundred thirty-one thousand, two hundred forty-three".