111122346689 has 2 divisors, whose sum is σ = 111122346690. Its totient is φ = 111122346688.

The previous prime is 111122346649. The next prime is 111122346701. The reversal of 111122346689 is 986643221111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82077666064 + 29044680625 = 286492^2 + 170425^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111122346689 is a prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (111122346649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55561173344 + 55561173345.

It is an arithmetic number, because the mean of its divisors is an integer number (55561173345).

Almost surely, 2^111122346689 is an apocalyptic number.

It is an amenable number.

111122346689 is a deficient number, since it is larger than the sum of its proper divisors (1).

111122346689 is an equidigital number, since it uses as much as digits as its factorization.

111122346689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 44.

The spelling of 111122346689 in words is "one hundred eleven billion, one hundred twenty-two million, three hundred forty-six thousand, six hundred eighty-nine".