120302321 has 4 divisors (see below), whose sum is σ = 121950372. Its totient is φ = 118654272.

The previous prime is 120302311. The next prime is 120302333. The reversal of 120302321 is 123203021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 123203021 = 31 ⋅3974291.

It can be written as a sum of positive squares in 2 ways, for example, as 64963600 + 55338721 = 8060^2 + 7439^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120302321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120302296 and 120302305.

It is not an unprimeable number, because it can be changed into a prime (120302311) 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, 823916 + ... + 824061.

It is an arithmetic number, because the mean of its divisors is an integer number (30487593).

Almost surely, 2^120302321 is an apocalyptic number.

It is an amenable number.

120302321 is a deficient number, since it is larger than the sum of its proper divisors (1648051).

120302321 is an equidigital number, since it uses as much as digits as its factorization.

120302321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1648050.

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

The square root of 120302321 is about 10968.2414725424. The cubic root of 120302321 is about 493.6562828913.

Adding to 120302321 its reverse (123203021), we get a palindrome (243505342).

The spelling of 120302321 in words is "one hundred twenty million, three hundred two thousand, three hundred twenty-one".