143323402109 has 4 divisors (see below), whose sum is σ = 145672966140. Its totient is φ = 140973838080.

The previous prime is 143323402009. The next prime is 143323402121. The reversal of 143323402109 is 901204323341.

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 23555496484 + 119767905625 = 153478^2 + 346075^2 .

It is a cyclic number.

It is not a de Polignac number, because 143323402109 - 2⁸ = 143323401853 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 (143323402139) 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, 1174781924 + ... + 1174782045.

It is an arithmetic number, because the mean of its divisors is an integer number (36418241535).

Almost surely, 2^143323402109 is an apocalyptic number.

It is an amenable number.

143323402109 is a deficient number, since it is larger than the sum of its proper divisors (2349564031).

143323402109 is an equidigital number, since it uses as much as digits as its factorization.

143323402109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2349564030.

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 143323402109 in words is "one hundred forty-three billion, three hundred twenty-three million, four hundred two thousand, one hundred nine".