111317628682187 has 2 divisors, whose sum is σ = 111317628682188. Its totient is φ = 111317628682186.

The previous prime is 111317628682181. The next prime is 111317628682243. The reversal of 111317628682187 is 781286826713111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111317628682187 is a prime.

It is a super-2 number, since 2×111317628682187² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111317628682181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55658814341093 + 55658814341094.

It is an arithmetic number, because the mean of its divisors is an integer number (55658814341094).

Almost surely, 2^{111317628682187} is an apocalyptic number.

111317628682187 is a deficient number, since it is larger than the sum of its proper divisors (1).

111317628682187 is an equidigital number, since it uses as much as digits as its factorization.

111317628682187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10838016, while the sum is 62.

The spelling of 111317628682187 in words is "one hundred eleven trillion, three hundred seventeen billion, six hundred twenty-eight million, six hundred eighty-two thousand, one hundred eighty-seven".