12420355143211 has 2 divisors, whose sum is σ = 12420355143212. Its totient is φ = 12420355143210.

The previous prime is 12420355143181. The next prime is 12420355143269. The reversal of 12420355143211 is 11234155302421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12420355143211 - 2⁴³ = 3624262121003 is a prime.

It is not a weakly prime, because it can be changed into another prime (12420355143271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6210177571605 + 6210177571606.

It is an arithmetic number, because the mean of its divisors is an integer number (6210177571606).

Almost surely, 2^{12420355143211} is an apocalyptic number.

12420355143211 is a deficient number, since it is larger than the sum of its proper divisors (1).

12420355143211 is an equidigital number, since it uses as much as digits as its factorization.

12420355143211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 12420355143211 in words is "twelve trillion, four hundred twenty billion, three hundred fifty-five million, one hundred forty-three thousand, two hundred eleven".