1103321212517 has 2 divisors, whose sum is σ = 1103321212518. Its totient is φ = 1103321212516.

The previous prime is 1103321212493. The next prime is 1103321212561. The reversal of 1103321212517 is 7152121233011.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1079284120996 + 24037091521 = 1038886^2 + 155039^2 .

It is a cyclic number.

It is not a de Polignac number, because 1103321212517 - 2⁸ = 1103321212261 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1103321212517.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1103321212117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551660606258 + 551660606259.

It is an arithmetic number, because the mean of its divisors is an integer number (551660606259).

Almost surely, 2^{1103321212517} is an apocalyptic number.

It is an amenable number.

1103321212517 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103321212517 is an equidigital number, since it uses as much as digits as its factorization.

1103321212517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 29.

Adding to 1103321212517 its reverse (7152121233011), we get a palindrome (8255442445528).

The spelling of 1103321212517 in words is "one trillion, one hundred three billion, three hundred twenty-one million, two hundred twelve thousand, five hundred seventeen".