13223403 has 24 divisors (see below), whose sum is σ = 19987968. Its totient is φ = 8415792.

The previous prime is 13223401. The next prime is 13223423. The reversal of 13223403 is 30432231.

13223403 is a `hidden beast` number, since 1 + 322 + 340 + 3 = 666.

It is not a de Polignac number, because 13223403 - 2¹ = 13223401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13223401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17826 + ... + 18552.

It is an arithmetic number, because the mean of its divisors is an integer number (832832).

Almost surely, 2^13223403 is an apocalyptic number.

13223403 is a deficient number, since it is larger than the sum of its proper divisors (6764565).

13223403 is a wasteful number, since it uses less digits than its factorization.

13223403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823 (or 820 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 13223403 is about 3636.3997305027. The cubic root of 13223403 is about 236.4727369432.

Adding to 13223403 its reverse (30432231), we get a palindrome (43655634).

The spelling of 13223403 in words is "thirteen million, two hundred twenty-three thousand, four hundred three".