4021430341993 has 2 divisors, whose sum is σ = 4021430341994. Its totient is φ = 4021430341992.

The previous prime is 4021430341969. The next prime is 4021430342093. The reversal of 4021430341993 is 3991430341204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4014200581209 + 7229760784 = 2003547^2 + 85028^2 .

It is a cyclic number.

It is not a de Polignac number, because 4021430341993 - 2⁵ = 4021430341961 is a prime.

It is not a weakly prime, because it can be changed into another prime (4021430341913) 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, 2010715170996 + 2010715170997.

It is an arithmetic number, because the mean of its divisors is an integer number (2010715170997).

Almost surely, 2^{4021430341993} is an apocalyptic number.

It is an amenable number.

4021430341993 is a deficient number, since it is larger than the sum of its proper divisors (1).

4021430341993 is an equidigital number, since it uses as much as digits as its factorization.

4021430341993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 43.

The spelling of 4021430341993 in words is "four trillion, twenty-one billion, four hundred thirty million, three hundred forty-one thousand, nine hundred ninety-three".