421324423131 has 4 divisors (see below), whose sum is σ = 561765897512. Its totient is φ = 280882948752.

The previous prime is 421324423129. The next prime is 421324423159. The reversal of 421324423131 is 131324423124.

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

It is not a de Polignac number, because 421324423131 - 2¹ = 421324423129 is a prime.

It is a super-2 number, since 2×421324423131² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421324423831) 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, 70220737186 + ... + 70220737191.

It is an arithmetic number, because the mean of its divisors is an integer number (140441474378).

Almost surely, 2^421324423131 is an apocalyptic number.

421324423131 is a deficient number, since it is larger than the sum of its proper divisors (140441474381).

421324423131 is a wasteful number, since it uses less digits than its factorization.

421324423131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140441474380.

The product of its digits is 13824, while the sum is 30.

Adding to 421324423131 its reverse (131324423124), we get a palindrome (552648846255).

The spelling of 421324423131 in words is "four hundred twenty-one billion, three hundred twenty-four million, four hundred twenty-three thousand, one hundred thirty-one".