4021430143243 has 2 divisors, whose sum is σ = 4021430143244. Its totient is φ = 4021430143242.

The previous prime is 4021430143201. The next prime is 4021430143307. The reversal of 4021430143243 is 3423410341204.

4021430143243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4021430143243 is a prime.

It is not a weakly prime, because it can be changed into another prime (4021430143543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010715071621 + 2010715071622.

It is an arithmetic number, because the mean of its divisors is an integer number (2010715071622).

Almost surely, 2^{4021430143243} is an apocalyptic number.

4021430143243 is a deficient number, since it is larger than the sum of its proper divisors (1).

4021430143243 is an equidigital number, since it uses as much as digits as its factorization.

4021430143243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 4021430143243 its reverse (3423410341204), we get a palindrome (7444840484447).

The spelling of 4021430143243 in words is "four trillion, twenty-one billion, four hundred thirty million, one hundred forty-three thousand, two hundred forty-three".