1217001371 has 2 divisors, whose sum is σ = 1217001372. Its totient is φ = 1217001370.

The previous prime is 1217001349. The next prime is 1217001377. The reversal of 1217001371 is 1731007121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1217001371 - 2⁶ = 1217001307 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1217001377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 608500685 + 608500686.

It is an arithmetic number, because the mean of its divisors is an integer number (608500686).

Almost surely, 2^1217001371 is an apocalyptic number.

1217001371 is a deficient number, since it is larger than the sum of its proper divisors (1).

1217001371 is an equidigital number, since it uses as much as digits as its factorization.

1217001371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 294, while the sum is 23.

The square root of 1217001371 is about 34885.5467350019. The cubic root of 1217001371 is about 1067.6535681386.

Adding to 1217001371 its reverse (1731007121), we get a palindrome (2948008492).

The spelling of 1217001371 in words is "one billion, two hundred seventeen million, one thousand, three hundred seventy-one".