111542317 has 2 divisors, whose sum is σ = 111542318. Its totient is φ = 111542316.

The previous prime is 111542303. The next prime is 111542339. The reversal of 111542317 is 713245111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110229001 + 1313316 = 10499^2 + 1146^2 .

It is a cyclic number.

It is not a de Polignac number, because 111542317 - 2¹⁹ = 111018029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111542291 and 111542300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111522317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55771158 + 55771159.

It is an arithmetic number, because the mean of its divisors is an integer number (55771159).

Almost surely, 2^111542317 is an apocalyptic number.

It is an amenable number.

111542317 is a deficient number, since it is larger than the sum of its proper divisors (1).

111542317 is an equidigital number, since it uses as much as digits as its factorization.

111542317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 840, while the sum is 25.

The square root of 111542317 is about 10561.3596189127. The cubic root of 111542317 is about 481.3709604979.

Adding to 111542317 its reverse (713245111), we get a palindrome (824787428).

The spelling of 111542317 in words is "one hundred eleven million, five hundred forty-two thousand, three hundred seventeen".