143643717313 has 2 divisors, whose sum is σ = 143643717314. Its totient is φ = 143643717312.

The previous prime is 143643717281. The next prime is 143643717389. The reversal of 143643717313 is 313717346341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137676618304 + 5967099009 = 371048^2 + 77247^2 .

It is a cyclic number.

It is not a de Polignac number, because 143643717313 - 2⁵ = 143643717281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 143643717313.

It is not a weakly prime, because it can be changed into another prime (143643777313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71821858656 + 71821858657.

It is an arithmetic number, because the mean of its divisors is an integer number (71821858657).

Almost surely, 2^143643717313 is an apocalyptic number.

It is an amenable number.

143643717313 is a deficient number, since it is larger than the sum of its proper divisors (1).

143643717313 is an equidigital number, since it uses as much as digits as its factorization.

143643717313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 381024, while the sum is 43.

The spelling of 143643717313 in words is "one hundred forty-three billion, six hundred forty-three million, seven hundred seventeen thousand, three hundred thirteen".