13421322401 has 4 divisors (see below), whose sum is σ = 14210811972. Its totient is φ = 12631832832.

The previous prime is 13421322389. The next prime is 13421322427. The reversal of 13421322401 is 10422312431.

13421322401 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 12149330176 + 1271992225 = 110224^2 + 35665^2 .

It is a cyclic number.

It is not a de Polignac number, because 13421322401 - 2⁶ = 13421322337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13421322451) 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, 394744760 + ... + 394744793.

It is an arithmetic number, because the mean of its divisors is an integer number (3552702993).

Almost surely, 2^13421322401 is an apocalyptic number.

It is an amenable number.

13421322401 is a deficient number, since it is larger than the sum of its proper divisors (789489571).

13421322401 is an equidigital number, since it uses as much as digits as its factorization.

13421322401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789489570.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 13421322401 its reverse (10422312431), we get a palindrome (23843634832).

The spelling of 13421322401 in words is "thirteen billion, four hundred twenty-one million, three hundred twenty-two thousand, four hundred one".