420203402303 has 8 divisors (see below), whose sum is σ = 423649669872. Its totient is φ = 416762629056.

The previous prime is 420203402261. The next prime is 420203402347. The reversal of 420203402303 is 303204302024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 420203402303 - 2¹⁰ = 420203401279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420203404303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1219925 + ... + 1525982.

It is an arithmetic number, because the mean of its divisors is an integer number (52956208734).

Almost surely, 2^420203402303 is an apocalyptic number.

420203402303 is a deficient number, since it is larger than the sum of its proper divisors (3446267569).

420203402303 is a wasteful number, since it uses less digits than its factorization.

420203402303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2747161.

The product of its (nonzero) digits is 3456, while the sum is 23.

Adding to 420203402303 its reverse (303204302024), we get a palindrome (723407704327).

The spelling of 420203402303 in words is "four hundred twenty billion, two hundred three million, four hundred two thousand, three hundred three".