1317051121 has 2 divisors, whose sum is σ = 1317051122. Its totient is φ = 1317051120.

The previous prime is 1317051083. The next prime is 1317051133. The reversal of 1317051121 is 1211507131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1066936896 + 250114225 = 32664^2 + 15815^2 .

It is an emirp because it is prime and its reverse (1211507131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1317051121 - 2¹¹ = 1317049073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1317051092 and 1317051101.

It is not a weakly prime, because it can be changed into another prime (1317051161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658525560 + 658525561.

It is an arithmetic number, because the mean of its divisors is an integer number (658525561).

Almost surely, 2^1317051121 is an apocalyptic number.

It is an amenable number.

1317051121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1317051121 is an equidigital number, since it uses as much as digits as its factorization.

1317051121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 210, while the sum is 22.

The square root of 1317051121 is about 36291.1989468521. The cubic root of 1317051121 is about 1096.1438311891.

Adding to 1317051121 its reverse (1211507131), we get a palindrome (2528558252).

The spelling of 1317051121 in words is "one billion, three hundred seventeen million, fifty-one thousand, one hundred twenty-one".