2223705123 has 16 divisors (see below), whose sum is σ = 3407978400. Its totient is φ = 1431349920.

The previous prime is 2223705119. The next prime is 2223705131. The reversal of 2223705123 is 3215073222.

It is a happy number.

2223705123 is a `hidden beast` number, since 222 + 370 + 51 + 23 = 666.

It is not a de Polignac number, because 2223705123 - 2² = 2223705119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2223705023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1419208 + ... + 1420773.

It is an arithmetic number, because the mean of its divisors is an integer number (212998650).

Almost surely, 2^2223705123 is an apocalyptic number.

2223705123 is a deficient number, since it is larger than the sum of its proper divisors (1184273277).

2223705123 is a wasteful number, since it uses less digits than its factorization.

2223705123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2840019 (or 2840013 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 2223705123 is about 47156.1779939808. The cubic root of 2223705123 is about 1305.2460838612.

Adding to 2223705123 its reverse (3215073222), we get a palindrome (5438778345).

The spelling of 2223705123 in words is "two billion, two hundred twenty-three million, seven hundred five thousand, one hundred twenty-three".