143173666123 has 2 divisors, whose sum is σ = 143173666124. Its totient is φ = 143173666122.

The previous prime is 143173666121. The next prime is 143173666249. The reversal of 143173666123 is 321666371341.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 143173666123 - 2¹ = 143173666121 is a prime.

It is a super-2 number, since 2×143173666123² (a number of 23 digits) contains 22 as substring.

Together with 143173666121, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 143173666123.

It is not a weakly prime, because it can be changed into another prime (143173666121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71586833061 + 71586833062.

It is an arithmetic number, because the mean of its divisors is an integer number (71586833062).

Almost surely, 2^143173666123 is an apocalyptic number.

143173666123 is a deficient number, since it is larger than the sum of its proper divisors (1).

143173666123 is an equidigital number, since it uses as much as digits as its factorization.

143173666123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 43.

The spelling of 143173666123 in words is "one hundred forty-three billion, one hundred seventy-three million, six hundred sixty-six thousand, one hundred twenty-three".