320025051321 has 4 divisors (see below), whose sum is σ = 426700068432. Its totient is φ = 213350034212.

The previous prime is 320025051293. The next prime is 320025051331. The reversal of 320025051321 is 123150520023.

It is a happy number.

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 320025051321 - 2⁹ = 320025050809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320025051291 and 320025051300.

It is not an unprimeable number, because it can be changed into a prime (320025051331) 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, 53337508551 + ... + 53337508556.

It is an arithmetic number, because the mean of its divisors is an integer number (106675017108).

Almost surely, 2^320025051321 is an apocalyptic number.

It is an amenable number.

320025051321 is a deficient number, since it is larger than the sum of its proper divisors (106675017111).

320025051321 is a wasteful number, since it uses less digits than its factorization.

320025051321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106675017110.

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 320025051321 its reverse (123150520023), we get a palindrome (443175571344).

The spelling of 320025051321 in words is "three hundred twenty billion, twenty-five million, fifty-one thousand, three hundred twenty-one".