983120321 has 2 divisors, whose sum is σ = 983120322. Its totient is φ = 983120320.

The previous prime is 983120311. The next prime is 983120323. The reversal of 983120321 is 123021389.

983120321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 784000000 + 199120321 = 28000^2 + 14111^2 .

It is a cyclic number.

It is not a de Polignac number, because 983120321 - 2²² = 978926017 is a prime.

Together with 983120323, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (983120323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 491560160 + 491560161.

It is an arithmetic number, because the mean of its divisors is an integer number (491560161).

Almost surely, 2^983120321 is an apocalyptic number.

It is an amenable number.

983120321 is a deficient number, since it is larger than the sum of its proper divisors (1).

983120321 is an equidigital number, since it uses as much as digits as its factorization.

983120321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 983120321 is about 31354.7495764198. The cubic root of 983120321 is about 994.3414818993.

The spelling of 983120321 in words is "nine hundred eighty-three million, one hundred twenty thousand, three hundred twenty-one".