1112111120191 has 2 divisors, whose sum is σ = 1112111120192. Its totient is φ = 1112111120190.

The previous prime is 1112111120189. The next prime is 1112111120203. The reversal of 1112111120191 is 1910211112111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1112111120191 - 2¹ = 1112111120189 is a prime.

It is a super-2 number, since 2×1112111120191² (a number of 25 digits) contains 22 as substring.

Together with 1112111120189, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1112111120171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556055560095 + 556055560096.

It is an arithmetic number, because the mean of its divisors is an integer number (556055560096).

Almost surely, 2^{1112111120191} is an apocalyptic number.

1112111120191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112111120191 is an equidigital number, since it uses as much as digits as its factorization.

1112111120191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 22.

The spelling of 1112111120191 in words is "one trillion, one hundred twelve billion, one hundred eleven million, one hundred twenty thousand, one hundred ninety-one".