2213123663 has 4 divisors (see below), whose sum is σ = 2213425368. Its totient is φ = 2212821960.

The previous prime is 2213123659. The next prime is 2213123669. The reversal of 2213123663 is 3663213122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2213123663 - 2² = 2213123659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2213123669) 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 in 3 ways as a sum of consecutive naturals, for example, 139568 + ... + 154613.

It is an arithmetic number, because the mean of its divisors is an integer number (553356342).

Almost surely, 2^2213123663 is an apocalyptic number.

2213123663 is a deficient number, since it is larger than the sum of its proper divisors (301705).

2213123663 is an equidigital number, since it uses as much as digits as its factorization.

2213123663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301704.

The product of its digits is 7776, while the sum is 29.

The square root of 2213123663 is about 47043.8483013454. The cubic root of 2213123663 is about 1303.1724614350.

Adding to 2213123663 its reverse (3663213122), we get a palindrome (5876336785).

The spelling of 2213123663 in words is "two billion, two hundred thirteen million, one hundred twenty-three thousand, six hundred sixty-three".