111223467917 has 2 divisors, whose sum is σ = 111223467918. Its totient is φ = 111223467916.

The previous prime is 111223467791. The next prime is 111223467937. The reversal of 111223467917 is 719764322111.

Together with previous prime (111223467791) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110956276201 + 267191716 = 333101^2 + 16346^2 .

It is a cyclic number.

It is not a de Polignac number, because 111223467917 - 2¹² = 111223463821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111223467937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55611733958 + 55611733959.

It is an arithmetic number, because the mean of its divisors is an integer number (55611733959).

Almost surely, 2^111223467917 is an apocalyptic number.

It is an amenable number.

111223467917 is a deficient number, since it is larger than the sum of its proper divisors (1).

111223467917 is an equidigital number, since it uses as much as digits as its factorization.

111223467917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 44.

The spelling of 111223467917 in words is "one hundred eleven billion, two hundred twenty-three million, four hundred sixty-seven thousand, nine hundred seventeen".