2001111111019 has 2 divisors, whose sum is σ = 2001111111020. Its totient is φ = 2001111111018.

The previous prime is 2001111111001. The next prime is 2001111111031. The reversal of 2001111111019 is 9101111111002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2001111111019 - 2⁷ = 2001111110891 is a prime.

It is a super-2 number, since 2×2001111111019² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2001111110987 and 2001111111005.

It is not a weakly prime, because it can be changed into another prime (2001111111119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000555555509 + 1000555555510.

It is an arithmetic number, because the mean of its divisors is an integer number (1000555555510).

Almost surely, 2^{2001111111019} is an apocalyptic number.

2001111111019 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001111111019 is an equidigital number, since it uses as much as digits as its factorization.

2001111111019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 19.

The spelling of 2001111111019 in words is "two trillion, one billion, one hundred eleven million, one hundred eleven thousand, nineteen".