111335678137 has 2 divisors, whose sum is σ = 111335678138. Its totient is φ = 111335678136.

The previous prime is 111335678107. The next prime is 111335678173. The reversal of 111335678137 is 731876533111.

Together with next prime (111335678173) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67756610601 + 43579067536 = 260301^2 + 208756^2 .

It is an emirp because it is prime and its reverse (731876533111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111335678137 - 2⁷ = 111335678009 is a prime.

It is not a weakly prime, because it can be changed into another prime (111335678107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55667839068 + 55667839069.

It is an arithmetic number, because the mean of its divisors is an integer number (55667839069).

Almost surely, 2^111335678137 is an apocalyptic number.

It is an amenable number.

111335678137 is a deficient number, since it is larger than the sum of its proper divisors (1).

111335678137 is an equidigital number, since it uses as much as digits as its factorization.

111335678137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 46.

The spelling of 111335678137 in words is "one hundred eleven billion, three hundred thirty-five million, six hundred seventy-eight thousand, one hundred thirty-seven".