2205634123 has 8 divisors (see below), whose sum is σ = 2749881600. Its totient is φ = 1718675880.

The previous prime is 2205634117. The next prime is 2205634129. The reversal of 2205634123 is 3214365022.

It is an interprime number because it is at equal distance from previous prime (2205634117) and next prime (2205634129).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2205634123 - 2⁹ = 2205633611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2205634091 and 2205634100.

It is not an unprimeable number, because it can be changed into a prime (2205634129) 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 7 ways as a sum of consecutive naturals, for example, 14322223 + ... + 14322376.

It is an arithmetic number, because the mean of its divisors is an integer number (343735200).

Almost surely, 2^2205634123 is an apocalyptic number.

2205634123 is a deficient number, since it is larger than the sum of its proper divisors (544247477).

2205634123 is a wasteful number, since it uses less digits than its factorization.

2205634123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28644617.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 2205634123 is about 46964.1791475162. The cubic root of 2205634123 is about 1301.7007568132.

Adding to 2205634123 its reverse (3214365022), we get a palindrome (5419999145).

The spelling of 2205634123 in words is "two billion, two hundred five million, six hundred thirty-four thousand, one hundred twenty-three".