113043239 has 2 divisors, whose sum is σ = 113043240. Its totient is φ = 113043238.

The previous prime is 113043211. The next prime is 113043241. The reversal of 113043239 is 932340311.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 113043239 - 2¹⁶ = 112977703 is a prime.

It is a super-3 number, since 3×113043239³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 113043241, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113043739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56521619 + 56521620.

It is an arithmetic number, because the mean of its divisors is an integer number (56521620).

Almost surely, 2^113043239 is an apocalyptic number.

113043239 is a deficient number, since it is larger than the sum of its proper divisors (1).

113043239 is an equidigital number, since it uses as much as digits as its factorization.

113043239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 113043239 is about 10632.1794096977. The cubic root of 113043239 is about 483.5204693774.

The spelling of 113043239 in words is "one hundred thirteen million, forty-three thousand, two hundred thirty-nine".