111716123 has 2 divisors, whose sum is σ = 111716124. Its totient is φ = 111716122.

The previous prime is 111716119. The next prime is 111716159. The reversal of 111716123 is 321617111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111716123 - 2² = 111716119 is a prime.

It is a super-2 number, since 2×111716123² = 24960984276302258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111716173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55858061 + 55858062.

It is an arithmetic number, because the mean of its divisors is an integer number (55858062).

Almost surely, 2^111716123 is an apocalyptic number.

111716123 is a deficient number, since it is larger than the sum of its proper divisors (1).

111716123 is an equidigital number, since it uses as much as digits as its factorization.

111716123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 252, while the sum is 23.

The square root of 111716123 is about 10569.5848073612. The cubic root of 111716123 is about 481.6208559191.

The spelling of 111716123 in words is "one hundred eleven million, seven hundred sixteen thousand, one hundred twenty-three".