143313303 has 8 divisors (see below), whose sum is σ = 218382208. Its totient is φ = 81893304.

The previous prime is 143313271. The next prime is 143313319. The reversal of 143313303 is 303313341.

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

It is not a de Polignac number, because 143313303 - 2⁵ = 143313271 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 6824443 = 143313303 / (1 + 4 + 3 + 3 + 1 + 3 + 3 + 0 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 143313303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143333303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3412201 + ... + 3412242.

It is an arithmetic number, because the mean of its divisors is an integer number (27297776).

Almost surely, 2^143313303 is an apocalyptic number.

143313303 is a deficient number, since it is larger than the sum of its proper divisors (75068905).

143313303 is an equidigital number, since it uses as much as digits as its factorization.

143313303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6824453.

The product of its (nonzero) digits is 972, while the sum is 21.

The square root of 143313303 is about 11971.3534322565. The cubic root of 143313303 is about 523.3137772003.

Adding to 143313303 its reverse (303313341), we get a palindrome (446626644).

The spelling of 143313303 in words is "one hundred forty-three million, three hundred thirteen thousand, three hundred three".