143323402009 has 2 divisors, whose sum is σ = 143323402010. Its totient is φ = 143323402008.

The previous prime is 143323401997. The next prime is 143323402121. The reversal of 143323402009 is 900204323341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140079529984 + 3243872025 = 374272^2 + 56955^2 .

It is a cyclic number.

It is not a de Polignac number, because 143323402009 - 2²⁵ = 143289847577 is a prime.

It is not a weakly prime, because it can be changed into another prime (143323408009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71661701004 + 71661701005.

It is an arithmetic number, because the mean of its divisors is an integer number (71661701005).

Almost surely, 2^143323402009 is an apocalyptic number.

It is an amenable number.

143323402009 is a deficient number, since it is larger than the sum of its proper divisors (1).

143323402009 is an equidigital number, since it uses as much as digits as its factorization.

143323402009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 31.

The spelling of 143323402009 in words is "one hundred forty-three billion, three hundred twenty-three million, four hundred two thousand, nine".