111161125111 has 2 divisors, whose sum is σ = 111161125112. Its totient is φ = 111161125110.

The previous prime is 111161125063. The next prime is 111161125171. The reversal of 111161125111 is 111521161111.

It is a m-pointer prime, because the next prime (111161125171) can be obtained adding 111161125111 to its product of digits (60).

It is a weak prime.

It is an emirp because it is prime and its reverse (111521161111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111161125111 - 2¹¹ = 111161123063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111161125171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55580562555 + 55580562556.

It is an arithmetic number, because the mean of its divisors is an integer number (55580562556).

Almost surely, 2^111161125111 is an apocalyptic number.

111161125111 is a deficient number, since it is larger than the sum of its proper divisors (1).

111161125111 is an equidigital number, since it uses as much as digits as its factorization.

111161125111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60, while the sum is 22.

Adding to 111161125111 its reverse (111521161111), we get a palindrome (222682286222).

The spelling of 111161125111 in words is "one hundred eleven billion, one hundred sixty-one million, one hundred twenty-five thousand, one hundred eleven".