2111911119391 has 8 divisors (see below), whose sum is σ = 2121684894000. Its totient is φ = 2102158616640.

The previous prime is 2111911119313. The next prime is 2111911119449. The reversal of 2111911119391 is 1939111191112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2111911119391 - 2¹⁹ = 2111910595103 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 (2111951119391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5118925 + ... + 5516086.

It is an arithmetic number, because the mean of its divisors is an integer number (265210611750).

Almost surely, 2^{2111911119391} is an apocalyptic number.

2111911119391 is a deficient number, since it is larger than the sum of its proper divisors (9773774609).

2111911119391 is a wasteful number, since it uses less digits than its factorization.

2111911119391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10635929.

The product of its digits is 4374, while the sum is 40.

The spelling of 2111911119391 in words is "two trillion, one hundred eleven billion, nine hundred eleven million, one hundred nineteen thousand, three hundred ninety-one".