423124122431 has 4 divisors (see below), whose sum is σ = 423288190200. Its totient is φ = 422960054664.

The previous prime is 423124122413. The next prime is 423124122433. The reversal of 423124122431 is 134221421324.

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 423124122431 - 2¹⁸ = 423123860287 is a prime.

It is a super-2 number, since 2×423124122431² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 423124122394 and 423124122403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423124122433) 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, 82030016 + ... + 82035173.

It is an arithmetic number, because the mean of its divisors is an integer number (105822047550).

Almost surely, 2^423124122431 is an apocalyptic number.

423124122431 is a deficient number, since it is larger than the sum of its proper divisors (164067769).

423124122431 is a wasteful number, since it uses less digits than its factorization.

423124122431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164067768.

The product of its digits is 9216, while the sum is 29.

Adding to 423124122431 its reverse (134221421324), we get a palindrome (557345543755).

The spelling of 423124122431 in words is "four hundred twenty-three billion, one hundred twenty-four million, one hundred twenty-two thousand, four hundred thirty-one".