111244911157 has 2 divisors, whose sum is σ = 111244911158. Its totient is φ = 111244911156.

The previous prime is 111244911133. The next prime is 111244911221. The reversal of 111244911157 is 751119442111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58164898276 + 53080012881 = 241174^2 + 230391^2 .

It is an emirp because it is prime and its reverse (751119442111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111244911157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111244921157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55622455578 + 55622455579.

It is an arithmetic number, because the mean of its divisors is an integer number (55622455579).

Almost surely, 2^111244911157 is an apocalyptic number.

It is an amenable number.

111244911157 is a deficient number, since it is larger than the sum of its proper divisors (1).

111244911157 is an equidigital number, since it uses as much as digits as its factorization.

111244911157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 37.

The spelling of 111244911157 in words is "one hundred eleven billion, two hundred forty-four million, nine hundred eleven thousand, one hundred fifty-seven".