100111143 has 8 divisors (see below), whose sum is σ = 145616256. Its totient is φ = 60673400.

The previous prime is 100111127. The next prime is 100111169. The reversal of 100111143 is 341111001.

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 100111143 - 2⁴ = 100111127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100111043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1516803 + ... + 1516868.

It is an arithmetic number, because the mean of its divisors is an integer number (18202032).

Almost surely, 2^100111143 is an apocalyptic number.

100111143 is a deficient number, since it is larger than the sum of its proper divisors (45505113).

100111143 is a wasteful number, since it uses less digits than its factorization.

100111143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3033685.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 100111143 is about 10005.5556067617. Note that the first 3 decimals coincide. The cubic root of 100111143 is about 464.3307797293.

Adding to 100111143 its reverse (341111001), we get a palindrome (441222144).

The spelling of 100111143 in words is "one hundred million, one hundred eleven thousand, one hundred forty-three".