143172111899 has 2 divisors, whose sum is σ = 143172111900. Its totient is φ = 143172111898.

The previous prime is 143172111847. The next prime is 143172111937. The reversal of 143172111899 is 998111271341.

It is a strong prime.

It is an emirp because it is prime and its reverse (998111271341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 143172111899 - 2²⁰ = 143171063323 is a prime.

It is not a weakly prime, because it can be changed into another prime (143172111799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71586055949 + 71586055950.

It is an arithmetic number, because the mean of its divisors is an integer number (71586055950).

Almost surely, 2^143172111899 is an apocalyptic number.

143172111899 is a deficient number, since it is larger than the sum of its proper divisors (1).

143172111899 is an equidigital number, since it uses as much as digits as its factorization.

143172111899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 47.

The spelling of 143172111899 in words is "one hundred forty-three billion, one hundred seventy-two million, one hundred eleven thousand, eight hundred ninety-nine".