1002020019999 has 8 divisors (see below), whose sum is σ = 1336087706160. Its totient is φ = 667982840256.

The previous prime is 1002020019961. The next prime is 1002020020019. The reversal of 1002020019999 is 9999100202001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1002020019999 - 2¹³ = 1002020011807 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1002020019999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002020019799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7549852 + ... + 7681425.

It is an arithmetic number, because the mean of its divisors is an integer number (167010963270).

Almost surely, 2^{1002020019999} is an apocalyptic number.

1002020019999 is a deficient number, since it is larger than the sum of its proper divisors (334067686161).

1002020019999 is a wasteful number, since it uses less digits than its factorization.

1002020019999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15253209.

The product of its (nonzero) digits is 26244, while the sum is 42.

The spelling of 1002020019999 in words is "one trillion, two billion, twenty million, nineteen thousand, nine hundred ninety-nine".