120143303 has 4 divisors (see below), whose sum is σ = 137306640. Its totient is φ = 102979968.

The previous prime is 120143291. The next prime is 120143311. The reversal of 120143303 is 303341021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 303341021 = 983 ⋅308587.

It is not a de Polignac number, because 120143303 - 2⁶ = 120143239 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 (120143363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8581658 + ... + 8581671.

It is an arithmetic number, because the mean of its divisors is an integer number (34326660).

Almost surely, 2^120143303 is an apocalyptic number.

120143303 is a deficient number, since it is larger than the sum of its proper divisors (17163337).

120143303 is an equidigital number, since it uses as much as digits as its factorization.

120143303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17163336.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 120143303 is about 10960.9900556473. The cubic root of 120143303 is about 493.4386787551.

Adding to 120143303 its reverse (303341021), we get a palindrome (423484324).

The spelling of 120143303 in words is "one hundred twenty million, one hundred forty-three thousand, three hundred three".