1113223203217 has 2 divisors, whose sum is σ = 1113223203218. Its totient is φ = 1113223203216.

The previous prime is 1113223203199. The next prime is 1113223203221. The reversal of 1113223203217 is 7123023223111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 725454213696 + 387768989521 = 851736^2 + 622711^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113223203217 - 2²³ = 1113214814609 is a prime.

It is a super-3 number, since 3×1113223203217³ (a number of 37 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1113823203217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556611601608 + 556611601609.

It is an arithmetic number, because the mean of its divisors is an integer number (556611601609).

Almost surely, 2^{1113223203217} is an apocalyptic number.

It is an amenable number.

1113223203217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113223203217 is an equidigital number, since it uses as much as digits as its factorization.

1113223203217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

Adding to 1113223203217 its reverse (7123023223111), we get a palindrome (8236246426328).

The spelling of 1113223203217 in words is "one trillion, one hundred thirteen billion, two hundred twenty-three million, two hundred three thousand, two hundred seventeen".