1001202020939 has 2 divisors, whose sum is σ = 1001202020940. Its totient is φ = 1001202020938.

The previous prime is 1001202020899. The next prime is 1001202020941. The reversal of 1001202020939 is 9390202021001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1001202020939 - 2²⁰ = 1001200972363 is a prime.

It is a Sophie Germain prime.

Together with 1001202020941, 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 (1001202020239) 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, 500601010469 + 500601010470.

It is an arithmetic number, because the mean of its divisors is an integer number (500601010470).

Almost surely, 2^{1001202020939} is an apocalyptic number.

1001202020939 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001202020939 is an equidigital number, since it uses as much as digits as its factorization.

1001202020939 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 29.

The spelling of 1001202020939 in words is "one trillion, one billion, two hundred two million, twenty thousand, nine hundred thirty-nine".