23042403 has 12 divisors (see below), whose sum is σ = 33508800. Its totient is φ = 15257616.

The previous prime is 23042401. The next prime is 23042407. The reversal of 23042403 is 30424032.

It is not a de Polignac number, because 23042403 - 2¹ = 23042401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23042401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7251 + ... + 9932.

It is an arithmetic number, because the mean of its divisors is an integer number (2792400).

Almost surely, 2^23042403 is an apocalyptic number.

23042403 is a deficient number, since it is larger than the sum of its proper divisors (10466397).

23042403 is a wasteful number, since it uses less digits than its factorization.

23042403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17338 (or 17335 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 23042403 is about 4800.2503059736. The cubic root of 23042403 is about 284.5613566248.

Adding to 23042403 its reverse (30424032), we get a palindrome (53466435).

It can be divided in two parts, 2 and 3042403, that multiplied together give a palindrome (6084806).

The spelling of 23042403 in words is "twenty-three million, forty-two thousand, four hundred three".