13321304421040 has 160 divisors (see below), whose sum is σ = 39190819198464. Its totient is φ = 4090123192320.

The previous prime is 13321304421017. The next prime is 13321304421049. The reversal of 13321304421040 is 4012440312331.

It is a happy number.

13321304421040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (13321304421049) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15725709 + ... + 16551148.

Almost surely, 2^{13321304421040} is an apocalyptic number.

13321304421040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13321304421040 is an abundant number, since it is smaller than the sum of its proper divisors (25869514777424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13321304421040 is a wasteful number, since it uses less digits than its factorization.

13321304421040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32276955 (or 32276949 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 13321304421040 its reverse (4012440312331), we get a palindrome (17333744733371).

The spelling of 13321304421040 in words is "thirteen trillion, three hundred twenty-one billion, three hundred four million, four hundred twenty-one thousand, forty".