13330403 has 4 divisors (see below), whose sum is σ = 13760448. Its totient is φ = 12900360.

The previous prime is 13330379. The next prime is 13330423. The reversal of 13330403 is 30403331.

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 13330403 - 2¹² = 13326307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13330423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214976 + ... + 215037.

It is an arithmetic number, because the mean of its divisors is an integer number (3440112).

Almost surely, 2^13330403 is an apocalyptic number.

13330403 is a deficient number, since it is larger than the sum of its proper divisors (430045).

13330403 is an equidigital number, since it uses as much as digits as its factorization.

13330403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430044.

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 13330403 is about 3651.0824422355. The cubic root of 13330403 is about 237.1088475549.

Adding to 13330403 its reverse (30403331), we get a palindrome (43733734).

The spelling of 13330403 in words is "thirteen million, three hundred thirty thousand, four hundred three".