1001009983 has 2 divisors, whose sum is σ = 1001009984. Its totient is φ = 1001009982.

The previous prime is 1001009941. The next prime is 1001009987. The reversal of 1001009983 is 3899001001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001009983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1001009987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500504991 + 500504992.

It is an arithmetic number, because the mean of its divisors is an integer number (500504992).

Almost surely, 2^1001009983 is an apocalyptic number.

1001009983 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001009983 is an equidigital number, since it uses as much as digits as its factorization.

1001009983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 1001009983 is about 31638.7418049454. The cubic root of 1001009983 is about 1000.3365477229.

It can be divided in two parts, 100100998 and 3, that added together give a palindrome (100101001).

The spelling of 1001009983 in words is "one billion, one million, nine thousand, nine hundred eighty-three".