111343142 has 12 divisors (see below), whose sum is σ = 170233980. Its totient is φ = 54618408.

The previous prime is 111343129. The next prime is 111343147. The reversal of 111343142 is 241343111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111343147) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4292 + ... + 15527.

It is an arithmetic number, because the mean of its divisors is an integer number (14186165).

Almost surely, 2^111343142 is an apocalyptic number.

111343142 is a deficient number, since it is larger than the sum of its proper divisors (58890838).

111343142 is an equidigital number, since it uses as much as digits as its factorization.

111343142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19927 (or 19874 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 111343142 is about 10551.9259853356. The cubic root of 111343142 is about 481.0842705439.

Adding to 111343142 its reverse (241343111), we get a palindrome (352686253).

The spelling of 111343142 in words is "one hundred eleven million, three hundred forty-three thousand, one hundred forty-two".