23126403 has 16 divisors (see below), whose sum is σ = 32076800. Its totient is φ = 14804640.

The previous prime is 23126399. The next prime is 23126413. The reversal of 23126403 is 30462132.

It is a happy number.

It is not a de Polignac number, because 23126403 - 2² = 23126399 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23126403.

It is not an unprimeable number, because it can be changed into a prime (23126413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12033 + ... + 13821.

It is an arithmetic number, because the mean of its divisors is an integer number (2004800).

Almost surely, 2^23126403 is an apocalyptic number.

23126403 is a deficient number, since it is larger than the sum of its proper divisors (8950397).

23126403 is a wasteful number, since it uses less digits than its factorization.

23126403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1962.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 23126403 is about 4808.9918901990. The cubic root of 23126403 is about 284.9067223215.

Adding to 23126403 its reverse (30462132), we get a palindrome (53588535).

The spelling of 23126403 in words is "twenty-three million, one hundred twenty-six thousand, four hundred three".