20043003019 has 12 divisors (see below), whose sum is σ = 21715750632. Its totient is φ = 18490680000.

The previous prime is 20043002989. The next prime is 20043003037. The reversal of 20043003019 is 91030034002.

It is not a de Polignac number, because 20043003019 - 2²⁷ = 19908785291 is a prime.

It is a super-2 number, since 2×20043003019² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20043003319) 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 in 11 ways as a sum of consecutive naturals, for example, 271444 + ... + 337294.

It is an arithmetic number, because the mean of its divisors is an integer number (1809645886).

Almost surely, 2^20043003019 is an apocalyptic number.

20043003019 is a deficient number, since it is larger than the sum of its proper divisors (1672747613).

20043003019 is a wasteful number, since it uses less digits than its factorization.

20043003019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67678 (or 67665 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The spelling of 20043003019 in words is "twenty billion, forty-three million, three thousand, nineteen".