143143023323281 has 2 divisors, whose sum is σ = 143143023323282. Its totient is φ = 143143023323280.

The previous prime is 143143023323269. The next prime is 143143023323323. The reversal of 143143023323281 is 182323320341341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143099492256400 + 43531066881 = 11962420^2 + 208641^2 .

It is an emirp because it is prime and its reverse (182323320341341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 143143023323281 - 2²¹ = 143143021226129 is a prime.

It is a super-2 number, since 2×143143023323281² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (143143023333281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71571511661640 + 71571511661641.

It is an arithmetic number, because the mean of its divisors is an integer number (71571511661641).

Almost surely, 2^{143143023323281} is an apocalyptic number.

It is an amenable number.

143143023323281 is a deficient number, since it is larger than the sum of its proper divisors (1).

143143023323281 is an equidigital number, since it uses as much as digits as its factorization.

143143023323281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 248832, while the sum is 40.

The spelling of 143143023323281 in words is "one hundred forty-three trillion, one hundred forty-three billion, twenty-three million, three hundred twenty-three thousand, two hundred eighty-one".