143642919311 has 2 divisors, whose sum is σ = 143642919312. Its totient is φ = 143642919310.

The previous prime is 143642919269. The next prime is 143642919349. The reversal of 143642919311 is 113919246341.

It is a strong prime.

It is an emirp because it is prime and its reverse (113919246341) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143642919311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143642918311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71821459655 + 71821459656.

It is an arithmetic number, because the mean of its divisors is an integer number (71821459656).

Almost surely, 2^143642919311 is an apocalyptic number.

143642919311 is a deficient number, since it is larger than the sum of its proper divisors (1).

143642919311 is an equidigital number, since it uses as much as digits as its factorization.

143642919311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 44.

The spelling of 143642919311 in words is "one hundred forty-three billion, six hundred forty-two million, nine hundred nineteen thousand, three hundred eleven".