143143041991 has 2 divisors, whose sum is σ = 143143041992. Its totient is φ = 143143041990.

The previous prime is 143143041949. The next prime is 143143042027. The reversal of 143143041991 is 199140341341.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 143143041991 - 2⁹ = 143143041479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143143047991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71571520995 + 71571520996.

It is an arithmetic number, because the mean of its divisors is an integer number (71571520996).

Almost surely, 2^143143041991 is an apocalyptic number.

143143041991 is a deficient number, since it is larger than the sum of its proper divisors (1).

143143041991 is an equidigital number, since it uses as much as digits as its factorization.

143143041991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 40.

The spelling of 143143041991 in words is "one hundred forty-three billion, one hundred forty-three million, forty-one thousand, nine hundred ninety-one".