420311422354111 has 2 divisors, whose sum is σ = 420311422354112. Its totient is φ = 420311422354110.

The previous prime is 420311422354097. The next prime is 420311422354163. The reversal of 420311422354111 is 111453224113024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420311422354111 - 2⁷ = 420311422353983 is a prime.

It is a super-2 number, since 2×420311422354111² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420311422354181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210155711177055 + 210155711177056.

It is an arithmetic number, because the mean of its divisors is an integer number (210155711177056).

Almost surely, 2^{420311422354111} is an apocalyptic number.

420311422354111 is a deficient number, since it is larger than the sum of its proper divisors (1).

420311422354111 is an equidigital number, since it uses as much as digits as its factorization.

420311422354111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 34.

Adding to 420311422354111 its reverse (111453224113024), we get a palindrome (531764646467135).

The spelling of 420311422354111 in words is "four hundred twenty trillion, three hundred eleven billion, four hundred twenty-two million, three hundred fifty-four thousand, one hundred eleven".