111538817267 has 2 divisors, whose sum is σ = 111538817268. Its totient is φ = 111538817266.

The previous prime is 111538817189. The next prime is 111538817279. The reversal of 111538817267 is 762718835111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111538817267 - 2¹² = 111538813171 is a prime.

It is not a weakly prime, because it can be changed into another prime (111538817867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55769408633 + 55769408634.

It is an arithmetic number, because the mean of its divisors is an integer number (55769408634).

Almost surely, 2^111538817267 is an apocalyptic number.

111538817267 is a deficient number, since it is larger than the sum of its proper divisors (1).

111538817267 is an equidigital number, since it uses as much as digits as its factorization.

111538817267 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 564480, while the sum is 50.

The spelling of 111538817267 in words is "one hundred eleven billion, five hundred thirty-eight million, eight hundred seventeen thousand, two hundred sixty-seven".