2123303617 has 2 divisors, whose sum is σ = 2123303618. Its totient is φ = 2123303616.

The previous prime is 2123303597. The next prime is 2123303659. The reversal of 2123303617 is 7163033212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1952844481 + 170459136 = 44191^2 + 13056^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2123303617 is a prime.

It is not a weakly prime, because it can be changed into another prime (2123343617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061651808 + 1061651809.

It is an arithmetic number, because the mean of its divisors is an integer number (1061651809).

Almost surely, 2^2123303617 is an apocalyptic number.

It is an amenable number.

2123303617 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123303617 is an equidigital number, since it uses as much as digits as its factorization.

2123303617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 2123303617 is about 46079.3187558150. The cubic root of 2123303617 is about 1285.2985961459.

Adding to 2123303617 its reverse (7163033212), we get a palindrome (9286336829).

The spelling of 2123303617 in words is "two billion, one hundred twenty-three million, three hundred three thousand, six hundred seventeen".