423131042323 has 12 divisors (see below), whose sum is σ = 465194601144. Its totient is φ = 384581753600.

The previous prime is 423131042239. The next prime is 423131042401. The reversal of 423131042323 is 323240131324.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-423131042323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 423131042291 and 423131042300.

It is not an unprimeable number, because it can be changed into a prime (423131042623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 191268 + ... + 939598.

It is an arithmetic number, because the mean of its divisors is an integer number (38766216762).

Almost surely, 2^423131042323 is an apocalyptic number.

423131042323 is a deficient number, since it is larger than the sum of its proper divisors (42063558821).

423131042323 is a wasteful number, since it uses less digits than its factorization.

423131042323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753026 (or 753015 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 423131042323 its reverse (323240131324), we get a palindrome (746371173647).

The spelling of 423131042323 in words is "four hundred twenty-three billion, one hundred thirty-one million, forty-two thousand, three hundred twenty-three".