111128967197 has 4 divisors (see below), whose sum is σ = 111130581696. Its totient is φ = 111127352700.

The previous prime is 111128967193. The next prime is 111128967199. The reversal of 111128967197 is 791769821111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 791769821111 = 504877 ⋅1568243.

It is a cyclic number.

It is not a de Polignac number, because 111128967197 - 2² = 111128967193 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 (111128967193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 699179 + ... + 843272.

It is an arithmetic number, because the mean of its divisors is an integer number (27782645424).

Almost surely, 2^111128967197 is an apocalyptic number.

It is an amenable number.

111128967197 is a deficient number, since it is larger than the sum of its proper divisors (1614499).

111128967197 is an equidigital number, since it uses as much as digits as its factorization.

111128967197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614498.

The product of its digits is 381024, while the sum is 53.

The spelling of 111128967197 in words is "one hundred eleven billion, one hundred twenty-eight million, nine hundred sixty-seven thousand, one hundred ninety-seven".