13220300551 has 4 divisors (see below), whose sum is σ = 13232668600. Its totient is φ = 13207932504.

The previous prime is 13220300539. The next prime is 13220300581. The reversal of 13220300551 is 15500302231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15500302231 = 59693 ⋅259667.

It is a cyclic number.

It is not a de Polignac number, because 13220300551 - 2¹¹ = 13220298503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13220300531) 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, 6182421 + ... + 6184558.

It is an arithmetic number, because the mean of its divisors is an integer number (3308167150).

Almost surely, 2^13220300551 is an apocalyptic number.

13220300551 is a deficient number, since it is larger than the sum of its proper divisors (12368049).

13220300551 is a wasteful number, since it uses less digits than its factorization.

13220300551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12368048.

The product of its (nonzero) digits is 900, while the sum is 22.

Adding to 13220300551 its reverse (15500302231), we get a palindrome (28720602782).

The spelling of 13220300551 in words is "thirteen billion, two hundred twenty million, three hundred thousand, five hundred fifty-one".