111678313 has 2 divisors, whose sum is σ = 111678314. Its totient is φ = 111678312.

The previous prime is 111678289. The next prime is 111678341. The reversal of 111678313 is 313876111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110733529 + 944784 = 10523^2 + 972^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111678313 is a prime.

It is not a weakly prime, because it can be changed into another prime (111672313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55839156 + 55839157.

It is an arithmetic number, because the mean of its divisors is an integer number (55839157).

Almost surely, 2^111678313 is an apocalyptic number.

It is an amenable number.

111678313 is a deficient number, since it is larger than the sum of its proper divisors (1).

111678313 is an equidigital number, since it uses as much as digits as its factorization.

111678313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 31.

The square root of 111678313 is about 10567.7960332323. The cubic root of 111678313 is about 481.5665153911.

The spelling of 111678313 in words is "one hundred eleven million, six hundred seventy-eight thousand, three hundred thirteen".