111020220317 has 2 divisors, whose sum is σ = 111020220318. Its totient is φ = 111020220316.

The previous prime is 111020220257. The next prime is 111020220331. The reversal of 111020220317 is 713022020111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80525980441 + 30494239876 = 283771^2 + 174626^2 .

It is a cyclic number.

It is not a de Polignac number, because 111020220317 - 2¹⁰ = 111020219293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111020220397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55510110158 + 55510110159.

It is an arithmetic number, because the mean of its divisors is an integer number (55510110159).

Almost surely, 2^111020220317 is an apocalyptic number.

It is an amenable number.

111020220317 is a deficient number, since it is larger than the sum of its proper divisors (1).

111020220317 is an equidigital number, since it uses as much as digits as its factorization.

111020220317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 20.

Adding to 111020220317 its reverse (713022020111), we get a palindrome (824042240428).

The spelling of 111020220317 in words is "one hundred eleven billion, twenty million, two hundred twenty thousand, three hundred seventeen".