4021430343061 has 2 divisors, whose sum is σ = 4021430343062. Its totient is φ = 4021430343060.

The previous prime is 4021430343013. The next prime is 4021430343067. The reversal of 4021430343061 is 1603430341204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4020405959025 + 1024384036 = 2005095^2 + 32006^2 .

It is a cyclic number.

It is not a de Polignac number, because 4021430343061 - 2²¹ = 4021428245909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4021430343067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010715171530 + 2010715171531.

It is an arithmetic number, because the mean of its divisors is an integer number (2010715171531).

Almost surely, 2^{4021430343061} is an apocalyptic number.

It is an amenable number.

4021430343061 is a deficient number, since it is larger than the sum of its proper divisors (1).

4021430343061 is an equidigital number, since it uses as much as digits as its factorization.

4021430343061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 4021430343061 its reverse (1603430341204), we get a palindrome (5624860684265).

The spelling of 4021430343061 in words is "four trillion, twenty-one billion, four hundred thirty million, three hundred forty-three thousand, sixty-one".