2000191910111 has 12 divisors (see below), whose sum is σ = 2156656296816. Its totient is φ = 1851510022560.

The previous prime is 2000191910089. The next prime is 2000191910117. The reversal of 2000191910111 is 1110191910002.

It is not a de Polignac number, because 2000191910111 - 2²² = 2000187715807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000191910117) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45224966 + ... + 45269171.

It is an arithmetic number, because the mean of its divisors is an integer number (179721358068).

Almost surely, 2^{2000191910111} is an apocalyptic number.

2000191910111 is a deficient number, since it is larger than the sum of its proper divisors (156464386705).

2000191910111 is an equidigital number, since it uses as much as digits as its factorization.

2000191910111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90494222 (or 90494191 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 26.

The spelling of 2000191910111 in words is "two trillion, one hundred ninety-one million, nine hundred ten thousand, one hundred eleven".