1983312403 has 2 divisors, whose sum is σ = 1983312404. Its totient is φ = 1983312402.

The previous prime is 1983312377. The next prime is 1983312413. The reversal of 1983312403 is 3042133891.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1983312403 - 2⁵ = 1983312371 is a prime.

It is not a weakly prime, because it can be changed into another prime (1983312413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 991656201 + 991656202.

It is an arithmetic number, because the mean of its divisors is an integer number (991656202).

Almost surely, 2^1983312403 is an apocalyptic number.

1983312403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1983312403 is an equidigital number, since it uses as much as digits as its factorization.

1983312403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 1983312403 is about 44534.3957295931. The cubic root of 1983312403 is about 1256.4070826305.

The spelling of 1983312403 in words is "one billion, nine hundred eighty-three million, three hundred twelve thousand, four hundred three".