111171840007 has 2 divisors, whose sum is σ = 111171840008. Its totient is φ = 111171840006.

The previous prime is 111171839969. The next prime is 111171840019. The reversal of 111171840007 is 700048171111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111171840007 - 2⁷ = 111171839879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111171840107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55585920003 + 55585920004.

It is an arithmetic number, because the mean of its divisors is an integer number (55585920004).

Almost surely, 2^111171840007 is an apocalyptic number.

111171840007 is a deficient number, since it is larger than the sum of its proper divisors (1).

111171840007 is an equidigital number, since it uses as much as digits as its factorization.

111171840007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1568, while the sum is 31.

The spelling of 111171840007 in words is "one hundred eleven billion, one hundred seventy-one million, eight hundred forty thousand, seven".