13200421477 has 4 divisors (see below), whose sum is σ = 13976916876. Its totient is φ = 12423926080.

The previous prime is 13200421397. The next prime is 13200421489. The reversal of 13200421477 is 77412400231.

13200421477 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6749279716 + 6451141761 = 82154^2 + 80319^2 .

It is a cyclic number.

It is not a de Polignac number, because 13200421477 - 2¹¹ = 13200419429 is a prime.

It is a super-2 number, since 2×13200421477² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13200421877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388247674 + ... + 388247707.

It is an arithmetic number, because the mean of its divisors is an integer number (3494229219).

Almost surely, 2^13200421477 is an apocalyptic number.

13200421477 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

13200421477 is a deficient number, since it is larger than the sum of its proper divisors (776495399).

13200421477 is an equidigital number, since it uses as much as digits as its factorization.

13200421477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776495398.

The product of its (nonzero) digits is 9408, while the sum is 31.

The spelling of 13200421477 in words is "thirteen billion, two hundred million, four hundred twenty-one thousand, four hundred seventy-seven".