13220312103 has 64 divisors (see below), whose sum is σ = 20323353600. Its totient is φ = 8489370240.

The previous prime is 13220312033. The next prime is 13220312129. The reversal of 13220312103 is 30121302231.

It is not a de Polignac number, because 13220312103 - 2¹⁷ = 13220181031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13220312003) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20432926 + ... + 20433572.

It is an arithmetic number, because the mean of its divisors is an integer number (317552400).

Almost surely, 2^13220312103 is an apocalyptic number.

13220312103 is a deficient number, since it is larger than the sum of its proper divisors (7103041497).

13220312103 is a wasteful number, since it uses less digits than its factorization.

13220312103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949 (or 943 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13220312103 its reverse (30121302231), we get a palindrome (43341614334).

The spelling of 13220312103 in words is "thirteen billion, two hundred twenty million, three hundred twelve thousand, one hundred three".