421302344523 has 8 divisors (see below), whose sum is σ = 566986333248. Its totient is φ = 278243292744.

The previous prime is 421302344521. The next prime is 421302344527. The reversal of 421302344523 is 325443203124.

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

It is not a de Polignac number, because 421302344523 - 2¹ = 421302344521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421302344521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 656233861 + ... + 656234502.

It is an arithmetic number, because the mean of its divisors is an integer number (70873291656).

Almost surely, 2^421302344523 is an apocalyptic number.

421302344523 is a deficient number, since it is larger than the sum of its proper divisors (145683988725).

421302344523 is a wasteful number, since it uses less digits than its factorization.

421302344523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312468473.

The product of its (nonzero) digits is 69120, while the sum is 33.

Adding to 421302344523 its reverse (325443203124), we get a palindrome (746745547647).

The spelling of 421302344523 in words is "four hundred twenty-one billion, three hundred two million, three hundred forty-four thousand, five hundred twenty-three".