143023240405 has 4 divisors (see below), whose sum is σ = 171627888492. Its totient is φ = 114418592320.

The previous prime is 143023240403. The next prime is 143023240441. The reversal of 143023240405 is 504042320341.

It is a happy number.

143023240405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 504042320341 = 7 ⋅72006045763.

It can be written as a sum of positive squares in 2 ways, for example, as 111731753169 + 31291487236 = 334263^2 + 176894^2 .

It is not a de Polignac number, because 143023240405 - 2¹ = 143023240403 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 (143023240403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14302324036 + ... + 14302324045.

It is an arithmetic number, because the mean of its divisors is an integer number (42906972123).

Almost surely, 2^143023240405 is an apocalyptic number.

It is an amenable number.

143023240405 is a deficient number, since it is larger than the sum of its proper divisors (28604648087).

143023240405 is an equidigital number, since it uses as much as digits as its factorization.

143023240405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28604648086.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 143023240405 its reverse (504042320341), we get a palindrome (647065560746).

The spelling of 143023240405 in words is "one hundred forty-three billion, twenty-three million, two hundred forty thousand, four hundred five".