420360402354503 has 4 divisors (see below), whose sum is σ = 452695817920248. Its totient is φ = 388024986788760.

The previous prime is 420360402354491. The next prime is 420360402354521. The reversal of 420360402354503 is 305453204063024.

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 420360402354503 - 2²⁰ = 420360401305927 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 (420360402354583) 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, 16167707782853 + ... + 16167707782878.

It is an arithmetic number, because the mean of its divisors is an integer number (113173954480062).

Almost surely, 2^{420360402354503} is an apocalyptic number.

420360402354503 is a deficient number, since it is larger than the sum of its proper divisors (32335415565745).

420360402354503 is a wasteful number, since it uses less digits than its factorization.

420360402354503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32335415565744.

The product of its (nonzero) digits is 1036800, while the sum is 41.

The spelling of 420360402354503 in words is "four hundred twenty trillion, three hundred sixty billion, four hundred two million, three hundred fifty-four thousand, five hundred three".