23403013 has 8 divisors (see below), whose sum is σ = 23819040. Its totient is φ = 22990800.

The previous prime is 23403011. The next prime is 23403031. The reversal of 23403013 is 31030432.

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 23403013 - 2¹ = 23403011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23403011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13206 + ... + 14872.

It is an arithmetic number, because the mean of its divisors is an integer number (2977380).

Almost surely, 2^23403013 is an apocalyptic number.

It is an amenable number.

23403013 is a deficient number, since it is larger than the sum of its proper divisors (416027).

23403013 is a wasteful number, since it uses less digits than its factorization.

23403013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1907.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 23403013 is about 4837.6660695009. Note that the first 3 decimals coincide. The cubic root of 23403013 is about 286.0381263662.

Adding to 23403013 its reverse (31030432), we get a palindrome (54433445).

The spelling of 23403013 in words is "twenty-three million, four hundred three thousand, thirteen".