2000012019091 has 4 divisors (see below), whose sum is σ = 2018703720312. Its totient is φ = 1981320317872.

The previous prime is 2000012019079. The next prime is 2000012019119. The reversal of 2000012019091 is 1909102100002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2000012019091 - 2¹⁷ = 2000011888019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2000012019491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9345850450 + ... + 9345850663.

It is an arithmetic number, because the mean of its divisors is an integer number (504675930078).

Almost surely, 2^{2000012019091} is an apocalyptic number.

2000012019091 is a deficient number, since it is larger than the sum of its proper divisors (18691701221).

2000012019091 is a wasteful number, since it uses less digits than its factorization.

2000012019091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18691701220.

The product of its (nonzero) digits is 324, while the sum is 25.

Adding to 2000012019091 its reverse (1909102100002), we get a palindrome (3909114119093).

The spelling of 2000012019091 in words is "two trillion, twelve million, nineteen thousand, ninety-one".