431403104423 has 4 divisors (see below), whose sum is σ = 431404446000. Its totient is φ = 431401762848.

The previous prime is 431403104413. The next prime is 431403104437. The reversal of 431403104423 is 324401304134.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 324401304134 = 2 ⋅162200652067.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431403104423 is a prime.

It is a super-2 number, since 2×431403104423² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431403104413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131078 + ... + 938076.

It is an arithmetic number, because the mean of its divisors is an integer number (107851111500).

Almost surely, 2^431403104423 is an apocalyptic number.

431403104423 is a deficient number, since it is larger than the sum of its proper divisors (1341577).

431403104423 is an equidigital number, since it uses as much as digits as its factorization.

431403104423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341576.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 431403104423 its reverse (324401304134), we get a palindrome (755804408557).

The spelling of 431403104423 in words is "four hundred thirty-one billion, four hundred three million, one hundred four thousand, four hundred twenty-three".