421502122350423 has 24 divisors (see below), whose sum is σ = 610634408057856. Its totient is φ = 280171913346000.

The previous prime is 421502122350343. The next prime is 421502122350479. The reversal of 421502122350423 is 324053221205124.

421502122350423 is a `hidden beast` number, since 4 + 2 + 1 + 5 + 0 + 2 + 1 + 223 + 5 + 0 + 423 = 666.

It is not a de Polignac number, because 421502122350423 - 2¹⁴ = 421502122334039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421502122350223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27603 + ... + 29034548.

It is an arithmetic number, because the mean of its divisors is an integer number (25443100335744).

Almost surely, 2^{421502122350423} is an apocalyptic number.

421502122350423 is a deficient number, since it is larger than the sum of its proper divisors (189132285707433).

421502122350423 is a wasteful number, since it uses less digits than its factorization.

421502122350423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29066915 (or 29066912 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 421502122350423 its reverse (324053221205124), we get a palindrome (745555343555547).

The spelling of 421502122350423 in words is "four hundred twenty-one trillion, five hundred two billion, one hundred twenty-two million, three hundred fifty thousand, four hundred twenty-three".