231313366 has 4 divisors (see below), whose sum is σ = 346970052. Its totient is φ = 115656682.

The previous prime is 231313319. The next prime is 231313417. The reversal of 231313366 is 663313132.

231313366 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 57828340 + ... + 57828343.

It is an arithmetic number, because the mean of its divisors is an integer number (86742513).

Almost surely, 2^231313366 is an apocalyptic number.

231313366 is a deficient number, since it is larger than the sum of its proper divisors (115656686).

231313366 is a wasteful number, since it uses less digits than its factorization.

231313366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115656685.

The product of its digits is 5832, while the sum is 28.

The square root of 231313366 is about 15208.9896442860. The cubic root of 231313366 is about 613.8565715196.

Adding to 231313366 its reverse (663313132), we get a palindrome (894626498).

The spelling of 231313366 in words is "two hundred thirty-one million, three hundred thirteen thousand, three hundred sixty-six".