143101472981 has 2 divisors, whose sum is σ = 143101472982. Its totient is φ = 143101472980.

The previous prime is 143101472971. The next prime is 143101473043. The reversal of 143101472981 is 189274101341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130724910481 + 12376562500 = 361559^2 + 111250^2 .

It is a cyclic number.

It is not a de Polignac number, because 143101472981 - 2²⁶ = 143034364117 is a prime.

It is a super-2 number, since 2×143101472981² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143101472971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71550736490 + 71550736491.

It is an arithmetic number, because the mean of its divisors is an integer number (71550736491).

Almost surely, 2^143101472981 is an apocalyptic number.

It is an amenable number.

143101472981 is a deficient number, since it is larger than the sum of its proper divisors (1).

143101472981 is an equidigital number, since it uses as much as digits as its factorization.

143101472981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 41.

The spelling of 143101472981 in words is "one hundred forty-three billion, one hundred one million, four hundred seventy-two thousand, nine hundred eighty-one".