423131312423 has 4 divisors (see below), whose sum is σ = 423159366168. Its totient is φ = 423103258680.

The previous prime is 423131312321. The next prime is 423131312437. The reversal of 423131312423 is 324213131324.

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 423131312423 - 2⁸ = 423131312167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423131315423) 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, 14004236 + ... + 14034417.

It is an arithmetic number, because the mean of its divisors is an integer number (105789841542).

Almost surely, 2^423131312423 is an apocalyptic number.

423131312423 is a deficient number, since it is larger than the sum of its proper divisors (28053745).

423131312423 is a wasteful number, since it uses less digits than its factorization.

423131312423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28053744.

The product of its digits is 10368, while the sum is 29.

Adding to 423131312423 its reverse (324213131324), we get a palindrome (747344443747).

The spelling of 423131312423 in words is "four hundred twenty-three billion, one hundred thirty-one million, three hundred twelve thousand, four hundred twenty-three".