1320983 has 2 divisors, whose sum is σ = 1320984. Its totient is φ = 1320982.

The previous prime is 1320973. The next prime is 1321007. The reversal of 1320983 is 3890231.

1320983 is nontrivially palindromic in base 5.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1320983 - 2⁸ = 1320727 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660491 + 660492.

It is an arithmetic number, because the mean of its divisors is an integer number (660492).

2^1320983 is an apocalyptic number.

1320983 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320983 is an equidigital number, since it uses as much as digits as its factorization.

1320983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 1320983 is about 1149.3402455322. The cubic root of 1320983 is about 109.7233544175.

The spelling of 1320983 in words is "one million, three hundred twenty thousand, nine hundred eighty-three".