10320201321 has 4 divisors (see below), whose sum is σ = 13760268432. Its totient is φ = 6880134212.

The previous prime is 10320201317. The next prime is 10320201343. The reversal of 10320201321 is 12310202301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10320201321 - 2² = 10320201317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10320201321.

It is not an unprimeable number, because it can be changed into a prime (10320201121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1720033551 + ... + 1720033556.

It is an arithmetic number, because the mean of its divisors is an integer number (3440067108).

Almost surely, 2^10320201321 is an apocalyptic number.

It is an amenable number.

10320201321 is a deficient number, since it is larger than the sum of its proper divisors (3440067111).

10320201321 is an equidigital number, since it uses as much as digits as its factorization.

10320201321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3440067110.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 10320201321 its reverse (12310202301), we get a palindrome (22630403622).

The spelling of 10320201321 in words is "ten billion, three hundred twenty million, two hundred one thousand, three hundred twenty-one".