3813105802321 has 8 divisors (see below), whose sum is σ = 4040022766464. Its totient is φ = 3586479574080.

The previous prime is 3813105802313. The next prime is 3813105802339. The reversal of 3813105802321 is 1232085013183.

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 3813105802321 - 2³ = 3813105802313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3813105802361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72656965 + ... + 72709426.

It is an arithmetic number, because the mean of its divisors is an integer number (505002845808).

Almost surely, 2^{3813105802321} is an apocalyptic number.

It is an amenable number.

3813105802321 is a deficient number, since it is larger than the sum of its proper divisors (226916964143).

3813105802321 is a wasteful number, since it uses less digits than its factorization.

3813105802321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145367951.

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 3813105802321 in words is "three trillion, eight hundred thirteen billion, one hundred five million, eight hundred two thousand, three hundred twenty-one".