423131431 has 8 divisors (see below), whose sum is σ = 451843200. Its totient is φ = 395361120.

The previous prime is 423131417. The next prime is 423131461. The reversal of 423131431 is 134131324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 423131431 - 2¹¹ = 423129383 is a prime.

It is a super-2 number, since 2×423131431² = 358080415800215522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423131461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234436 + ... + 236233.

It is an arithmetic number, because the mean of its divisors is an integer number (56480400).

Almost surely, 2^423131431 is an apocalyptic number.

423131431 is a deficient number, since it is larger than the sum of its proper divisors (28711769).

423131431 is a wasteful number, since it uses less digits than its factorization.

423131431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470729.

The product of its digits is 864, while the sum is 22.

The square root of 423131431 is about 20570.1587499951. The cubic root of 423131431 is about 750.7438137813.

Adding to 423131431 its reverse (134131324), we get a palindrome (557262755).

The spelling of 423131431 in words is "four hundred twenty-three million, one hundred thirty-one thousand, four hundred thirty-one".