143324144021 has 4 divisors (see below), whose sum is σ = 143329130700. Its totient is φ = 143319157344.

The previous prime is 143324143999. The next prime is 143324144023. The reversal of 143324144021 is 120441423341.

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

It can be written as a sum of positive squares in 2 ways, for example, as 87397096900 + 55927047121 = 295630^2 + 236489^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143324144021 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 (143324144023) 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, 2449976 + ... + 2507793.

It is an arithmetic number, because the mean of its divisors is an integer number (35832282675).

Almost surely, 2^143324144021 is an apocalyptic number.

It is an amenable number.

143324144021 is a deficient number, since it is larger than the sum of its proper divisors (4986679).

143324144021 is an equidigital number, since it uses as much as digits as its factorization.

143324144021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4986678.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 143324144021 its reverse (120441423341), we get a palindrome (263765567362).

The spelling of 143324144021 in words is "one hundred forty-three billion, three hundred twenty-four million, one hundred forty-four thousand, twenty-one".