111739061227 has 2 divisors, whose sum is σ = 111739061228. Its totient is φ = 111739061226.

The previous prime is 111739061209. The next prime is 111739061243. The reversal of 111739061227 is 722160937111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111739061227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111739061227.

It is not a weakly prime, because it can be changed into another prime (111739067227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55869530613 + 55869530614.

It is an arithmetic number, because the mean of its divisors is an integer number (55869530614).

Almost surely, 2^111739061227 is an apocalyptic number.

111739061227 is a deficient number, since it is larger than the sum of its proper divisors (1).

111739061227 is an equidigital number, since it uses as much as digits as its factorization.

111739061227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 40.

Adding to 111739061227 its reverse (722160937111), we get a palindrome (833899998338).

The spelling of 111739061227 in words is "one hundred eleven billion, seven hundred thirty-nine million, sixty-one thousand, two hundred twenty-seven".