1001002103839 has 2 divisors, whose sum is σ = 1001002103840. Its totient is φ = 1001002103838.

The previous prime is 1001002103837. The next prime is 1001002103861. The reversal of 1001002103839 is 9383012001001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1001002103839 - 2¹ = 1001002103837 is a prime.

Together with 1001002103837, 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 (1001002103833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500501051919 + 500501051920.

It is an arithmetic number, because the mean of its divisors is an integer number (500501051920).

Almost surely, 2^{1001002103839} is an apocalyptic number.

1001002103839 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001002103839 is an equidigital number, since it uses as much as digits as its factorization.

1001002103839 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 28.

It can be divided in two parts, 1001002 and 103839, that added together give a triangular number (1104841 = T₁₄₈₆).

The spelling of 1001002103839 in words is "one trillion, one billion, two million, one hundred three thousand, eight hundred thirty-nine".