113440423 has 2 divisors, whose sum is σ = 113440424. Its totient is φ = 113440422.

The previous prime is 113440391. The next prime is 113440427. The reversal of 113440423 is 324044311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 113440423 - 2⁵ = 113440391 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 113440394 and 113440403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113440427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56720211 + 56720212.

It is an arithmetic number, because the mean of its divisors is an integer number (56720212).

Almost surely, 2^113440423 is an apocalyptic number.

113440423 is a deficient number, since it is larger than the sum of its proper divisors (1).

113440423 is an equidigital number, since it uses as much as digits as its factorization.

113440423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 113440423 is about 10650.8414221600. The cubic root of 113440423 is about 484.0860998728.

Adding to 113440423 its reverse (324044311), we get a palindrome (437484734).

The spelling of 113440423 in words is "one hundred thirteen million, four hundred forty thousand, four hundred twenty-three".