420205201303 has 4 divisors (see below), whose sum is σ = 438474992688. Its totient is φ = 401935409920.

The previous prime is 420205201291. The next prime is 420205201331. The reversal of 420205201303 is 303102502024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420205201303 - 2⁵ = 420205201271 is a prime.

It is a super-2 number, since 2×420205201303² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420205201333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9134895658 + ... + 9134895703.

It is an arithmetic number, because the mean of its divisors is an integer number (109618748172).

Almost surely, 2^420205201303 is an apocalyptic number.

420205201303 is a deficient number, since it is larger than the sum of its proper divisors (18269791385).

420205201303 is a wasteful number, since it uses less digits than its factorization.

420205201303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18269791384.

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 420205201303 its reverse (303102502024), we get a palindrome (723307703327).

The spelling of 420205201303 in words is "four hundred twenty billion, two hundred five million, two hundred one thousand, three hundred three".