2321611217 has 2 divisors, whose sum is σ = 2321611218. Its totient is φ = 2321611216.

The previous prime is 2321611147. The next prime is 2321611219. The reversal of 2321611217 is 7121161232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1340731456 + 980879761 = 36616^2 + 31319^2 .

It is a cyclic number.

It is not a de Polignac number, because 2321611217 - 2²⁶ = 2254502353 is a prime.

Together with 2321611219, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2321611219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160805608 + 1160805609.

It is an arithmetic number, because the mean of its divisors is an integer number (1160805609).

Almost surely, 2^2321611217 is an apocalyptic number.

It is an amenable number.

2321611217 is a deficient number, since it is larger than the sum of its proper divisors (1).

2321611217 is an equidigital number, since it uses as much as digits as its factorization.

2321611217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 26.

The square root of 2321611217 is about 48183.1009483616. The cubic root of 2321611217 is about 1324.1275789188.

Adding to 2321611217 its reverse (7121161232), we get a palindrome (9442772449).

The spelling of 2321611217 in words is "two billion, three hundred twenty-one million, six hundred eleven thousand, two hundred seventeen".