111423717 has 6 divisors (see below), whose sum is σ = 160945382. Its totient is φ = 74282472.

The previous prime is 111423677. The next prime is 111423721. The reversal of 111423717 is 717324111.

It can be written as a sum of positive squares in only one way, i.e., 57972996 + 53450721 = 7614^2 + 7311^2 .

It is not a de Polignac number, because 111423717 - 2⁷ = 111423589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111423737) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6190198 + ... + 6190215.

Almost surely, 2^111423717 is an apocalyptic number.

It is an amenable number.

111423717 is a deficient number, since it is larger than the sum of its proper divisors (49521665).

111423717 is a wasteful number, since it uses less digits than its factorization.

111423717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12380419 (or 12380416 counting only the distinct ones).

The product of its digits is 1176, while the sum is 27.

The square root of 111423717 is about 10555.7433182131. The cubic root of 111423717 is about 481.2002903173.

Adding to 111423717 its reverse (717324111), we get a palindrome (828747828).

The spelling of 111423717 in words is "one hundred eleven million, four hundred twenty-three thousand, seven hundred seventeen".