420830783911 has 2 divisors, whose sum is σ = 420830783912. Its totient is φ = 420830783910.

The previous prime is 420830783897. The next prime is 420830783917. The reversal of 420830783911 is 119387038024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 420830783911 - 2¹⁷ = 420830652839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420830783917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210415391955 + 210415391956.

It is an arithmetic number, because the mean of its divisors is an integer number (210415391956).

Almost surely, 2^420830783911 is an apocalyptic number.

420830783911 is a deficient number, since it is larger than the sum of its proper divisors (1).

420830783911 is an equidigital number, since it uses as much as digits as its factorization.

420830783911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 46.

The spelling of 420830783911 in words is "four hundred twenty billion, eight hundred thirty million, seven hundred eighty-three thousand, nine hundred eleven".