111043197 has 8 divisors (see below), whose sum is σ = 164508480. Its totient is φ = 74028780.

The previous prime is 111043193. The next prime is 111043213. The reversal of 111043197 is 791340111.

It is not a de Polignac number, because 111043197 - 2² = 111043193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 4112711 = 111043197 / (1 + 1 + 1 + 0 + 4 + 3 + 1 + 9 + 7).

It is a self number, because there is not a number n which added to its sum of digits gives 111043197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111043193) 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, 2056329 + ... + 2056382.

It is an arithmetic number, because the mean of its divisors is an integer number (20563560).

Almost surely, 2^111043197 is an apocalyptic number.

It is an amenable number.

111043197 is a deficient number, since it is larger than the sum of its proper divisors (53465283).

111043197 is an equidigital number, since it uses as much as digits as its factorization.

111043197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4112720 (or 4112714 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 27.

The square root of 111043197 is about 10537.7035923393. The cubic root of 111043197 is about 480.6518877084.

The spelling of 111043197 in words is "one hundred eleven million, forty-three thousand, one hundred ninety-seven".