143001430021 has 2 divisors, whose sum is σ = 143001430022. Its totient is φ = 143001430020.

The previous prime is 143001429941. The next prime is 143001430031. The reversal of 143001430021 is 120034100341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138561873121 + 4439556900 = 372239^2 + 66630^2 .

It is a cyclic number.

It is not a de Polignac number, because 143001430021 - 2¹¹ = 143001427973 is a prime.

It is a super-3 number, since 3×143001430021³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143001430031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71500715010 + 71500715011.

It is an arithmetic number, because the mean of its divisors is an integer number (71500715011).

Almost surely, 2^143001430021 is an apocalyptic number.

It is an amenable number.

143001430021 is a deficient number, since it is larger than the sum of its proper divisors (1).

143001430021 is an equidigital number, since it uses as much as digits as its factorization.

143001430021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 143001430021 its reverse (120034100341), we get a palindrome (263035530362).

The spelling of 143001430021 in words is "one hundred forty-three billion, one million, four hundred thirty thousand, twenty-one".