231204423 has 16 divisors (see below), whose sum is σ = 312149376. Its totient is φ = 152207520.

The previous prime is 231204401. The next prime is 231204427. The reversal of 231204423 is 324402132.

It is not a de Polignac number, because 231204423 - 2¹² = 231200327 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231204423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231204427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118768 + ... + 120698.

It is an arithmetic number, because the mean of its divisors is an integer number (19509336).

Almost surely, 2^231204423 is an apocalyptic number.

231204423 is a deficient number, since it is larger than the sum of its proper divisors (80944953).

231204423 is a wasteful number, since it uses less digits than its factorization.

231204423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2414.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 231204423 is about 15205.4076893716. The cubic root of 231204423 is about 613.7601858542.

Adding to 231204423 its reverse (324402132), we get a palindrome (555606555).

The spelling of 231204423 in words is "two hundred thirty-one million, two hundred four thousand, four hundred twenty-three".