5120321 has 4 divisors (see below), whose sum is σ = 5229312. Its totient is φ = 5011332.

The previous prime is 5120299. The next prime is 5120333. The reversal of 5120321 is 1230215.

It is a happy number.

5120321 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 5120321 - 2⁶ = 5120257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5120296 and 5120305.

It is not an unprimeable number, because it can be changed into a prime (5120351) 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, 54425 + ... + 54518.

It is an arithmetic number, because the mean of its divisors is an integer number (1307328).

Almost surely, 2^5120321 is an apocalyptic number.

It is an amenable number.

5120321 is a deficient number, since it is larger than the sum of its proper divisors (108991).

5120321 is a wasteful number, since it uses less digits than its factorization.

5120321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108990.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 5120321 is about 2262.8126303342. The cubic root of 5120321 is about 172.3583770728.

Adding to 5120321 its reverse (1230215), we get a palindrome (6350536).

The spelling of 5120321 in words is "five million, one hundred twenty thousand, three hundred twenty-one".