111713123 has 2 divisors, whose sum is σ = 111713124. Its totient is φ = 111713122.

The previous prime is 111713117. The next prime is 111713149. The reversal of 111713123 is 321317111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111713123 - 2⁶ = 111713059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111713095 and 111713104.

It is not a weakly prime, because it can be changed into another prime (111713113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55856561 + 55856562.

It is an arithmetic number, because the mean of its divisors is an integer number (55856562).

Almost surely, 2^111713123 is an apocalyptic number.

111713123 is a deficient number, since it is larger than the sum of its proper divisors (1).

111713123 is an equidigital number, since it uses as much as digits as its factorization.

111713123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 126, while the sum is 20.

The square root of 111713123 is about 10569.4428897648. The cubic root of 111713123 is about 481.6165447673.

The spelling of 111713123 in words is "one hundred eleven million, seven hundred thirteen thousand, one hundred twenty-three".