423403003123431 has 4 divisors (see below), whose sum is σ = 564537337497912. Its totient is φ = 282268668748952.

The previous prime is 423403003123381. The next prime is 423403003123459. The reversal of 423403003123431 is 134321300304324.

It is a happy number.

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 423403003123431 - 2⁶ = 423403003123367 is a prime.

It is a super-2 number, since 2×423403003123431² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 423403003123392 and 423403003123401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423403003123481) 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, 70567167187236 + ... + 70567167187241.

It is an arithmetic number, because the mean of its divisors is an integer number (141134334374478).

Almost surely, 2^{423403003123431} is an apocalyptic number.

423403003123431 is a deficient number, since it is larger than the sum of its proper divisors (141134334374481).

423403003123431 is a wasteful number, since it uses less digits than its factorization.

423403003123431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141134334374480.

The product of its (nonzero) digits is 62208, while the sum is 33.

Adding to 423403003123431 its reverse (134321300304324), we get a palindrome (557724303427755).

The spelling of 423403003123431 in words is "four hundred twenty-three trillion, four hundred three billion, three million, one hundred twenty-three thousand, four hundred thirty-one".