13220300133 has 12 divisors (see below), whose sum is σ = 19612097388. Its totient is φ = 8575329600.

The previous prime is 13220300123. The next prime is 13220300173. The reversal of 13220300133 is 33100302231.

13220300133 is a `hidden beast` number, since 13 + 220 + 300 + 133 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7026295329 + 6194004804 = 83823^2 + 78702^2 .

It is not a de Polignac number, because 13220300133 - 2⁶ = 13220300069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13220300123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19849968 + ... + 19850633.

It is an arithmetic number, because the mean of its divisors is an integer number (1634341449).

Almost surely, 2^13220300133 is an apocalyptic number.

It is an amenable number.

13220300133 is a deficient number, since it is larger than the sum of its proper divisors (6391797255).

13220300133 is a wasteful number, since it uses less digits than its factorization.

13220300133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39700644 (or 39700641 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 13220300133 its reverse (33100302231), we get a palindrome (46320602364).

The spelling of 13220300133 in words is "thirteen billion, two hundred twenty million, three hundred thousand, one hundred thirty-three".