2019091091101 has 16 divisors (see below), whose sum is σ = 2316017733120. Its totient is φ = 1724286551040.

The previous prime is 2019091091057. The next prime is 2019091091131. The reversal of 2019091091101 is 1011901909102.

It is a cyclic number.

It is not a de Polignac number, because 2019091091101 - 2²⁵ = 2019057536669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2019091091131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42321981 + ... + 42369661.

It is an arithmetic number, because the mean of its divisors is an integer number (144751108320).

Almost surely, 2^{2019091091101} is an apocalyptic number.

It is an amenable number.

2019091091101 is a deficient number, since it is larger than the sum of its proper divisors (296926642019).

2019091091101 is a wasteful number, since it uses less digits than its factorization.

2019091091101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69804.

The product of its (nonzero) digits is 1458, while the sum is 34.

The spelling of 2019091091101 in words is "two trillion, nineteen billion, ninety-one million, ninety-one thousand, one hundred one".