443430421113997 has 2 divisors, whose sum is σ = 443430421113998. Its totient is φ = 443430421113996.

The previous prime is 443430421113991. The next prime is 443430421114027. The reversal of 443430421113997 is 799311124034344.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 302816691853641 + 140613729260356 = 17401629^2 + 11858066^2 .

It is a cyclic number.

It is not a de Polignac number, because 443430421113997 - 2¹⁵ = 443430421081229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (443430421113991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221715210556998 + 221715210556999.

It is an arithmetic number, because the mean of its divisors is an integer number (221715210556999).

Almost surely, 2^{443430421113997} is an apocalyptic number.

It is an amenable number.

443430421113997 is a deficient number, since it is larger than the sum of its proper divisors (1).

443430421113997 is an equidigital number, since it uses as much as digits as its factorization.

443430421113997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7838208, while the sum is 55.

The spelling of 443430421113997 in words is "four hundred forty-three trillion, four hundred thirty billion, four hundred twenty-one million, one hundred thirteen thousand, nine hundred ninety-seven".