231203564 has 12 divisors (see below), whose sum is σ = 404861184. Its totient is φ = 115528944.

The previous prime is 231203513. The next prime is 231203597. The reversal of 231203564 is 465302132.

231203564 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 10727 + ... + 24030.

It is an arithmetic number, because the mean of its divisors is an integer number (33738432).

Almost surely, 2^231203564 is an apocalyptic number.

It is an amenable number.

231203564 is a deficient number, since it is larger than the sum of its proper divisors (173657620).

231203564 is a wasteful number, since it uses less digits than its factorization.

231203564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36424 (or 36422 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 231203564 is about 15205.3794428156. The cubic root of 231203564 is about 613.7594257467.

Adding to 231203564 its reverse (465302132), we get a palindrome (696505696).

The spelling of 231203564 in words is "two hundred thirty-one million, two hundred three thousand, five hundred sixty-four".