112120543217 has 2 divisors, whose sum is σ = 112120543218. Its totient is φ = 112120543216.

The previous prime is 112120543177. The next prime is 112120543243. The reversal of 112120543217 is 712345021211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110708587441 + 1411955776 = 332729^2 + 37576^2 .

It is a cyclic number.

It is not a de Polignac number, because 112120543217 - 2¹² = 112120539121 is a prime.

It is a super-2 number, since 2×112120543217² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 112120543217.

It is not a weakly prime, because it can be changed into another prime (112120543247) 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, 56060271608 + 56060271609.

It is an arithmetic number, because the mean of its divisors is an integer number (56060271609).

Almost surely, 2^112120543217 is an apocalyptic number.

It is an amenable number.

112120543217 is a deficient number, since it is larger than the sum of its proper divisors (1).

112120543217 is an equidigital number, since it uses as much as digits as its factorization.

112120543217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 29.

Adding to 112120543217 its reverse (712345021211), we get a palindrome (824465564428).

The spelling of 112120543217 in words is "one hundred twelve billion, one hundred twenty million, five hundred forty-three thousand, two hundred seventeen".