100120143 has 4 divisors (see below), whose sum is σ = 133493528. Its totient is φ = 66746760.

The previous prime is 100120091. The next prime is 100120159. The reversal of 100120143 is 341021001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 100120143 - 2⁶ = 100120079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100120183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16686688 + ... + 16686693.

It is an arithmetic number, because the mean of its divisors is an integer number (33373382).

Almost surely, 2^100120143 is an apocalyptic number.

100120143 is a deficient number, since it is larger than the sum of its proper divisors (33373385).

100120143 is an equidigital number, since it uses as much as digits as its factorization.

100120143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33373384.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 100120143 is about 10006.0053467905. The cubic root of 100120143 is about 464.3446937708.

Adding to 100120143 its reverse (341021001), we get a palindrome (441141144).

The spelling of 100120143 in words is "one hundred million, one hundred twenty thousand, one hundred forty-three".