20011001012019 has 24 divisors (see below), whose sum is σ = 28931742012992. Its totient is φ = 13328225222400.

The previous prime is 20011001012017. The next prime is 20011001012069. The reversal of 20011001012019 is 91021010011002.

It is a happy number.

It is not a de Polignac number, because 20011001012019 - 2¹ = 20011001012017 is a prime.

It is a super-2 number, since 2×20011001012019² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20011001011992 and 20011001012010.

It is not an unprimeable number, because it can be changed into a prime (20011001012017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 114455622 + ... + 114630324.

Almost surely, 2^{20011001012019} is an apocalyptic number.

20011001012019 is a deficient number, since it is larger than the sum of its proper divisors (8920741000973).

20011001012019 is a wasteful number, since it uses less digits than its factorization.

20011001012019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186507 (or 186504 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

The spelling of 20011001012019 in words is "twenty trillion, eleven billion, one million, twelve thousand, nineteen".