111217906507 has 2 divisors, whose sum is σ = 111217906508. Its totient is φ = 111217906506.

The previous prime is 111217906483. The next prime is 111217906531. The reversal of 111217906507 is 705609712111.

It is a balanced prime because it is at equal distance from previous prime (111217906483) and next prime (111217906531).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111217906507 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111217906507.

It is not a weakly prime, because it can be changed into another prime (111217906567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55608953253 + 55608953254.

It is an arithmetic number, because the mean of its divisors is an integer number (55608953254).

Almost surely, 2^111217906507 is an apocalyptic number.

111217906507 is a deficient number, since it is larger than the sum of its proper divisors (1).

111217906507 is an equidigital number, since it uses as much as digits as its factorization.

111217906507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26460, while the sum is 40.

The spelling of 111217906507 in words is "one hundred eleven billion, two hundred seventeen million, nine hundred six thousand, five hundred seven".