1230320983 has 2 divisors, whose sum is σ = 1230320984. Its totient is φ = 1230320982.

The previous prime is 1230320981. The next prime is 1230321023. The reversal of 1230320983 is 3890230321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1230320983 - 2¹ = 1230320981 is a prime.

Together with 1230320981, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230320981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615160491 + 615160492.

It is an arithmetic number, because the mean of its divisors is an integer number (615160492).

Almost surely, 2^1230320983 is an apocalyptic number.

1230320983 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230320983 is an equidigital number, since it uses as much as digits as its factorization.

1230320983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 1230320983 is about 35075.9316768636. The cubic root of 1230320983 is about 1071.5344633280.

The spelling of 1230320983 in words is "one billion, two hundred thirty million, three hundred twenty thousand, nine hundred eighty-three".