111210142 has 8 divisors (see below), whose sum is σ = 167214600. Its totient is φ = 55471944.

The previous prime is 111210139. The next prime is 111210167. The reversal of 111210142 is 241012111.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65517 + ... + 67192.

It is an arithmetic number, because the mean of its divisors is an integer number (20901825).

Almost surely, 2^111210142 is an apocalyptic number.

111210142 is a deficient number, since it is larger than the sum of its proper divisors (56004458).

111210142 is a wasteful number, since it uses less digits than its factorization.

111210142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133130.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 111210142 is about 10545.6219351919. The cubic root of 111210142 is about 480.8926416142.

Adding to 111210142 its reverse (241012111), we get a palindrome (352222253).

The spelling of 111210142 in words is "one hundred eleven million, two hundred ten thousand, one hundred forty-two".