13210221403 has 4 divisors (see below), whose sum is σ = 13269460288. Its totient is φ = 13150982520.

The previous prime is 13210221397. The next prime is 13210221413. The reversal of 13210221403 is 30412201231.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13210221403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13210221413) 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, 29619108 + ... + 29619553.

It is an arithmetic number, because the mean of its divisors is an integer number (3317365072).

Almost surely, 2^13210221403 is an apocalyptic number.

13210221403 is a deficient number, since it is larger than the sum of its proper divisors (59238885).

13210221403 is an equidigital number, since it uses as much as digits as its factorization.

13210221403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59238884.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 13210221403 its reverse (30412201231), we get a palindrome (43622422634).

The spelling of 13210221403 in words is "thirteen billion, two hundred ten million, two hundred twenty-one thousand, four hundred three".