420412343213971 has 2 divisors, whose sum is σ = 420412343213972. Its totient is φ = 420412343213970.

The previous prime is 420412343213969. The next prime is 420412343214077. The reversal of 420412343213971 is 179312343214024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420412343213971 - 2¹ = 420412343213969 is a prime.

Together with 420412343213969, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (420412343273971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210206171606985 + 210206171606986.

It is an arithmetic number, because the mean of its divisors is an integer number (210206171606986).

Almost surely, 2^{420412343213971} is an apocalyptic number.

420412343213971 is a deficient number, since it is larger than the sum of its proper divisors (1).

420412343213971 is an equidigital number, since it uses as much as digits as its factorization.

420412343213971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 870912, while the sum is 46.

Adding to 420412343213971 its reverse (179312343214024), we get a palindrome (599724686427995).

The spelling of 420412343213971 in words is "four hundred twenty trillion, four hundred twelve billion, three hundred forty-three million, two hundred thirteen thousand, nine hundred seventy-one".