143204969881 has 2 divisors, whose sum is σ = 143204969882. Its totient is φ = 143204969880.

The previous prime is 143204969837. The next prime is 143204969893. The reversal of 143204969881 is 188969402341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115793200656 + 27411769225 = 340284^2 + 165565^2 .

It is an emirp because it is prime and its reverse (188969402341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 143204969881 - 2¹¹ = 143204967833 is a prime.

It is a super-2 number, since 2×143204969881² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (143204969581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71602484940 + 71602484941.

It is an arithmetic number, because the mean of its divisors is an integer number (71602484941).

Almost surely, 2^143204969881 is an apocalyptic number.

It is an amenable number.

143204969881 is a deficient number, since it is larger than the sum of its proper divisors (1).

143204969881 is an equidigital number, since it uses as much as digits as its factorization.

143204969881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2985984, while the sum is 55.

The spelling of 143204969881 in words is "one hundred forty-three billion, two hundred four million, nine hundred sixty-nine thousand, eight hundred eighty-one".