1320002000321 has 8 divisors (see below), whose sum is σ = 1356673699200. Its totient is φ = 1283688074448.

The previous prime is 1320002000293. The next prime is 1320002000323. The reversal of 1320002000321 is 1230002000231.

It is a happy number.

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 1320002000321 - 2³⁴ = 1302822131137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1320002000296 and 1320002000305.

It is not an unprimeable number, because it can be changed into a prime (1320002000323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89435771 + ... + 89450528.

It is an arithmetic number, because the mean of its divisors is an integer number (169584212400).

Almost surely, 2^{1320002000321} is an apocalyptic number.

It is an amenable number.

1320002000321 is a deficient number, since it is larger than the sum of its proper divisors (36671698879).

1320002000321 is a wasteful number, since it uses less digits than its factorization.

1320002000321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178886503.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 1320002000321 its reverse (1230002000231), we get a palindrome (2550004000552).

The spelling of 1320002000321 in words is "one trillion, three hundred twenty billion, two million, three hundred twenty-one", and thus it is an aban number.