111111013223071 has 2 divisors, whose sum is σ = 111111013223072. Its totient is φ = 111111013223070.

The previous prime is 111111013223053. The next prime is 111111013223159. The reversal of 111111013223071 is 170322310111111.

It is a weak prime.

It is an emirp because it is prime and its reverse (170322310111111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111111013223071 - 2²⁵ = 111110979668639 is a prime.

It is a super-2 number, since 2×111111013223071² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111111013223051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55555506611535 + 55555506611536.

It is an arithmetic number, because the mean of its divisors is an integer number (55555506611536).

Almost surely, 2^{111111013223071} is an apocalyptic number.

111111013223071 is a deficient number, since it is larger than the sum of its proper divisors (1).

111111013223071 is an equidigital number, since it uses as much as digits as its factorization.

111111013223071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 25.

Adding to 111111013223071 its reverse (170322310111111), we get a palindrome (281433323334182).

The spelling of 111111013223071 in words is "one hundred eleven trillion, one hundred eleven billion, thirteen million, two hundred twenty-three thousand, seventy-one".