423131423 has 8 divisors (see below), whose sum is σ = 497105616. Its totient is φ = 355075200.

The previous prime is 423131417. The next prime is 423131461. The reversal of 423131423 is 324131324.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423131423 is a prime.

It is a super-2 number, since 2×423131423² = 358080402260009858, which 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 (423131473) 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, 1479338 + ... + 1479623.

It is an arithmetic number, because the mean of its divisors is an integer number (62138202).

Almost surely, 2^423131423 is an apocalyptic number.

423131423 is a deficient number, since it is larger than the sum of its proper divisors (73974193).

423131423 is a wasteful number, since it uses less digits than its factorization.

423131423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2958985.

The product of its digits is 1728, while the sum is 23.

The square root of 423131423 is about 20570.1585555387. The cubic root of 423131423 is about 750.7438090499.

Adding to 423131423 its reverse (324131324), we get a palindrome (747262747).

Subtracting from 423131423 its reverse (324131324), we obtain a palindrome (99000099).

The spelling of 423131423 in words is "four hundred twenty-three million, one hundred thirty-one thousand, four hundred twenty-three".