113409523 has 2 divisors, whose sum is σ = 113409524. Its totient is φ = 113409522.

The previous prime is 113409521. The next prime is 113409589. The reversal of 113409523 is 325904311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 113409523 - 2¹ = 113409521 is a prime.

Together with 113409521, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 113409491 and 113409500.

It is not a weakly prime, because it can be changed into another prime (113409521) 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, 56704761 + 56704762.

It is an arithmetic number, because the mean of its divisors is an integer number (56704762).

Almost surely, 2^113409523 is an apocalyptic number.

113409523 is a deficient number, since it is larger than the sum of its proper divisors (1).

113409523 is an equidigital number, since it uses as much as digits as its factorization.

113409523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 113409523 is about 10649.3907337462. The cubic root of 113409523 is about 484.0421425295.

The spelling of 113409523 in words is "one hundred thirteen million, four hundred nine thousand, five hundred twenty-three".