143303121 has 16 divisors (see below), whose sum is σ = 228632320. Its totient is φ = 88186320.

The previous prime is 143303113. The next prime is 143303197. The reversal of 143303121 is 121303341.

It is not a de Polignac number, because 143303121 - 2³ = 143303113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143303094 and 143303103.

It is not an unprimeable number, because it can be changed into a prime (143303101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203785 + ... + 204486.

It is an arithmetic number, because the mean of its divisors is an integer number (14289520).

Almost surely, 2^143303121 is an apocalyptic number.

It is an amenable number.

143303121 is a deficient number, since it is larger than the sum of its proper divisors (85329199).

143303121 is a wasteful number, since it uses less digits than its factorization.

143303121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408293 (or 408287 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 143303121 is about 11970.9281595038. The cubic root of 143303121 is about 523.3013835914.

Adding to 143303121 its reverse (121303341), we get a palindrome (264606462).

The spelling of 143303121 in words is "one hundred forty-three million, three hundred three thousand, one hundred twenty-one".