2203123 has 4 divisors (see below), whose sum is σ = 2372608. Its totient is φ = 2033640.

The previous prime is 2203121. The next prime is 2203133. The reversal of 2203123 is 3213022.

It is a happy number.

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 2203123 - 2¹ = 2203121 is a prime.

It is a super-3 number, since 3×2203123³ = 32080231083331265601, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 169471 = 2203123 / (2 + 2 + 0 + 3 + 1 + 2 + 3).

It is a Duffinian number.

2203123 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2203121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84723 + ... + 84748.

It is an arithmetic number, because the mean of its divisors is an integer number (593152).

2^2203123 is an apocalyptic number.

2203123 is a deficient number, since it is larger than the sum of its proper divisors (169485).

2203123 is a wasteful number, since it uses less digits than its factorization.

2203123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169484.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 2203123 is about 1484.2920871580. The cubic root of 2203123 is about 130.1206572103.

Adding to 2203123 its reverse (3213022), we get a palindrome (5416145).

The spelling of 2203123 in words is "two million, two hundred three thousand, one hundred twenty-three".