111204143 has 8 divisors (see below), whose sum is σ = 112149648. Its totient is φ = 110263104.

The previous prime is 111204139. The next prime is 111204151. The reversal of 111204143 is 341402111.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 111204143 - 2² = 111204139 is a prime.

It is a super-2 number, since 2×111204143² = 24732722840728898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111204043) 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, 63680 + ... + 65402.

It is an arithmetic number, because the mean of its divisors is an integer number (14018706).

Almost surely, 2^111204143 is an apocalyptic number.

111204143 is a deficient number, since it is larger than the sum of its proper divisors (945505).

111204143 is a wasteful number, since it uses less digits than its factorization.

111204143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2233.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 111204143 is about 10545.3375005260. The cubic root of 111204143 is about 480.8839945406.

Adding to 111204143 its reverse (341402111), we get a palindrome (452606254).

The spelling of 111204143 in words is "one hundred eleven million, two hundred four thousand, one hundred forty-three".