143320012 has 24 divisors (see below), whose sum is σ = 273917952. Its totient is φ = 65072400.

The previous prime is 143319977. The next prime is 143320019. The reversal of 143320012 is 210023341.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (143320019) 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, 66837 + ... + 68947.

It is an arithmetic number, because the mean of its divisors is an integer number (11413248).

Almost surely, 2^143320012 is an apocalyptic number.

It is an amenable number.

143320012 is a deficient number, since it is larger than the sum of its proper divisors (130597940).

143320012 is a wasteful number, since it uses less digits than its factorization.

143320012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3669 (or 3667 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 143320012 is about 11971.6336395665. The cubic root of 143320012 is about 523.3219431260.

Adding to 143320012 its reverse (210023341), we get a palindrome (353343353).

The spelling of 143320012 in words is "one hundred forty-three million, three hundred twenty thousand, twelve".