1121312210017 has 2 divisors, whose sum is σ = 1121312210018. Its totient is φ = 1121312210016.

The previous prime is 1121312209973. The next prime is 1121312210089. The reversal of 1121312210017 is 7100122131211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 879677043921 + 241635166096 = 937911^2 + 491564^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121312210017 - 2²⁷ = 1121177992289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1121312210017.

It is not a weakly prime, because it can be changed into another prime (1151312210017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560656105008 + 560656105009.

It is an arithmetic number, because the mean of its divisors is an integer number (560656105009).

Almost surely, 2^{1121312210017} is an apocalyptic number.

It is an amenable number.

1121312210017 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121312210017 is an equidigital number, since it uses as much as digits as its factorization.

1121312210017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 22.

Adding to 1121312210017 its reverse (7100122131211), we get a palindrome (8221434341228).

The spelling of 1121312210017 in words is "one trillion, one hundred twenty-one billion, three hundred twelve million, two hundred ten thousand, seventeen".