8081321201320 has 64 divisors (see below), whose sum is σ = 18582065568000. Its totient is φ = 3162329434368.

The previous prime is 8081321201183. The next prime is 8081321201329. The reversal of 8081321201320 is 231021231808.

It is not an unprimeable number, because it can be changed into a prime (8081321201329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11386662 + ... + 12075541.

It is an arithmetic number, because the mean of its divisors is an integer number (290344774500).

Almost surely, 2^{8081321201320} is an apocalyptic number.

It is an amenable number.

8081321201320 is an abundant number, since it is smaller than the sum of its proper divisors (10500744366680).

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

8081321201320 is a wasteful number, since it uses less digits than its factorization.

8081321201320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23462402 (or 23462398 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The spelling of 8081321201320 in words is "eight trillion, eighty-one billion, three hundred twenty-one million, two hundred one thousand, three hundred twenty".