420503040214201 has 6 divisors (see below), whose sum is σ = 489156597800250. Its totient is φ = 360431177326416.

The previous prime is 420503040214189. The next prime is 420503040214259. The reversal of 420503040214201 is 102412040305024.

It can be written as a sum of positive squares in only one way, i.e., 268984764570025 + 151518275644176 = 16400755^2 + 12309276^2 .

It is a de Polignac number, because none of the positive numbers 2^k-420503040214201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 420503040214201.

It is not an unprimeable number, because it can be changed into a prime (420503040214261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4290847349076 + ... + 4290847349173.

It is an arithmetic number, because the mean of its divisors is an integer number (81526099633375).

Almost surely, 2^{420503040214201} is an apocalyptic number.

It is an amenable number.

420503040214201 is a deficient number, since it is larger than the sum of its proper divisors (68653557586049).

420503040214201 is an equidigital number, since it uses as much as digits as its factorization.

420503040214201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8581694698263 (or 8581694698256 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 420503040214201 its reverse (102412040305024), we get a palindrome (522915080519225).

The spelling of 420503040214201 in words is "four hundred twenty trillion, five hundred three billion, forty million, two hundred fourteen thousand, two hundred one".