13073378321 has 8 divisors (see below), whose sum is σ = 13525478400. Its totient is φ = 12621364560.

The previous prime is 13073378291. The next prime is 13073378323. The reversal of 13073378321 is 12387337031.

13073378321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13073378321 - 2¹⁰ = 13073377297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13073378323) 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 7 ways as a sum of consecutive naturals, for example, 503270 + ... + 528608.

It is an arithmetic number, because the mean of its divisors is an integer number (1690684800).

Almost surely, 2^13073378321 is an apocalyptic number.

It is an amenable number.

13073378321 is a deficient number, since it is larger than the sum of its proper divisors (452100079).

13073378321 is a wasteful number, since it uses less digits than its factorization.

13073378321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43159.

The product of its (nonzero) digits is 63504, while the sum is 38.

The spelling of 13073378321 in words is "thirteen billion, seventy-three million, three hundred seventy-eight thousand, three hundred twenty-one".