111589017121 has 2 divisors, whose sum is σ = 111589017122. Its totient is φ = 111589017120.

The previous prime is 111589017083. The next prime is 111589017143. The reversal of 111589017121 is 121710985111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96811211025 + 14777806096 = 311145^2 + 121564^2 .

It is a cyclic number.

It is not a de Polignac number, because 111589017121 - 2¹⁷ = 111588886049 is a prime.

It is a super-2 number, since 2×111589017121² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111589017181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55794508560 + 55794508561.

It is an arithmetic number, because the mean of its divisors is an integer number (55794508561).

Almost surely, 2^111589017121 is an apocalyptic number.

It is an amenable number.

111589017121 is a deficient number, since it is larger than the sum of its proper divisors (1).

111589017121 is an equidigital number, since it uses as much as digits as its factorization.

111589017121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 37.

The spelling of 111589017121 in words is "one hundred eleven billion, five hundred eighty-nine million, seventeen thousand, one hundred twenty-one".