143043700999981 has 2 divisors, whose sum is σ = 143043700999982. Its totient is φ = 143043700999980.

The previous prime is 143043700999949. The next prime is 143043701000023. The reversal of 143043700999981 is 189999007340341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100614761937481 + 42428939062500 = 10030691^2 + 6513750^2 .

It is a cyclic number.

It is not a de Polignac number, because 143043700999981 - 2⁵ = 143043700999949 is a prime.

It is a super-2 number, since 2×143043700999981² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143043700991981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71521850499990 + 71521850499991.

It is an arithmetic number, because the mean of its divisors is an integer number (71521850499991).

Almost surely, 2^{143043700999981} is an apocalyptic number.

It is an amenable number.

143043700999981 is a deficient number, since it is larger than the sum of its proper divisors (1).

143043700999981 is an equidigital number, since it uses as much as digits as its factorization.

143043700999981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52907904, while the sum is 67.

The spelling of 143043700999981 in words is "one hundred forty-three trillion, forty-three billion, seven hundred million, nine hundred ninety-nine thousand, nine hundred eighty-one".