143243320001 has 4 divisors (see below), whose sum is σ = 143245496532. Its totient is φ = 143241143472.

The previous prime is 143243319893. The next prime is 143243320007. The reversal of 143243320001 is 100023342341.

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 85427598400 + 57815721601 = 292280^2 + 240449^2 .

It is a cyclic number.

It is not a de Polignac number, because 143243320001 - 2²² = 143239125697 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (143243320007) 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, 986366 + ... + 1122231.

It is an arithmetic number, because the mean of its divisors is an integer number (35811374133).

Almost surely, 2^143243320001 is an apocalyptic number.

It is an amenable number.

143243320001 is a deficient number, since it is larger than the sum of its proper divisors (2176531).

143243320001 is an equidigital number, since it uses as much as digits as its factorization.

143243320001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2176530.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 143243320001 its reverse (100023342341), we get a palindrome (243266662342).

The spelling of 143243320001 in words is "one hundred forty-three billion, two hundred forty-three million, three hundred twenty thousand, one".