143323343540 has 96 divisors (see below), whose sum is σ = 338386356000. Its totient is φ = 50625533952.

The previous prime is 143323343531. The next prime is 143323343573. The reversal of 143323343540 is 45343323341.

It can be written as a sum of positive squares in 16 ways, for example, as 58585297936 + 84738045604 = 242044^2 + 291098^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 143323343540.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 734666 + ... + 909054.

It is an arithmetic number, because the mean of its divisors is an integer number (3524857875).

Almost surely, 2^143323343540 is an apocalyptic number.

143323343540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143323343540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169193178000).

143323343540 is an abundant number, since it is smaller than the sum of its proper divisors (195063012460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143323343540 is a wasteful number, since it uses less digits than its factorization.

143323343540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174549 (or 174547 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 35.

Adding to 143323343540 its reverse (45343323341), we get a palindrome (188666666881).

The spelling of 143323343540 in words is "one hundred forty-three billion, three hundred twenty-three million, three hundred forty-three thousand, five hundred forty".