420340201117 has 2 divisors, whose sum is σ = 420340201118. Its totient is φ = 420340201116.

The previous prime is 420340201019. The next prime is 420340201129. The reversal of 420340201117 is 711102043024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 336004556281 + 84335644836 = 579659^2 + 290406^2 .

It is a cyclic number.

It is not a de Polignac number, because 420340201117 - 2¹⁵ = 420340168349 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 420340201091 and 420340201100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420340201147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210170100558 + 210170100559.

It is an arithmetic number, because the mean of its divisors is an integer number (210170100559).

Almost surely, 2^420340201117 is an apocalyptic number.

It is an amenable number.

420340201117 is a deficient number, since it is larger than the sum of its proper divisors (1).

420340201117 is an equidigital number, since it uses as much as digits as its factorization.

420340201117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 25.

The spelling of 420340201117 in words is "four hundred twenty billion, three hundred forty million, two hundred one thousand, one hundred seventeen".