231203423 has 8 divisors (see below), whose sum is σ = 252336000. Its totient is φ = 210089880.

The previous prime is 231203407. The next prime is 231203471. The reversal of 231203423 is 324302132.

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

It is not a de Polignac number, because 231203423 - 2⁴ = 231203407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231203395 and 231203404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231203923) 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, 35486 + ... + 41492.

It is an arithmetic number, because the mean of its divisors is an integer number (31542000).

Almost surely, 2^231203423 is an apocalyptic number.

231203423 is a deficient number, since it is larger than the sum of its proper divisors (21132577).

231203423 is a wasteful number, since it uses less digits than its factorization.

231203423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9517.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 231203423 is about 15205.3748062979. The cubic root of 231203423 is about 613.7593009791.

Adding to 231203423 its reverse (324302132), we get a palindrome (555505555).

The spelling of 231203423 in words is "two hundred thirty-one million, two hundred three thousand, four hundred twenty-three".