420412023412343 has 2 divisors, whose sum is σ = 420412023412344. Its totient is φ = 420412023412342.

The previous prime is 420412023412333. The next prime is 420412023412387. The reversal of 420412023412343 is 343214320214024.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420412023412343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420412023412333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210206011706171 + 210206011706172.

It is an arithmetic number, because the mean of its divisors is an integer number (210206011706172).

Almost surely, 2^{420412023412343} is an apocalyptic number.

420412023412343 is a deficient number, since it is larger than the sum of its proper divisors (1).

420412023412343 is an equidigital number, since it uses as much as digits as its factorization.

420412023412343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 110592, while the sum is 35.

Adding to 420412023412343 its reverse (343214320214024), we get a palindrome (763626343626367).

The spelling of 420412023412343 in words is "four hundred twenty trillion, four hundred twelve billion, twenty-three million, four hundred twelve thousand, three hundred forty-three".