231303404 has 24 divisors (see below), whose sum is σ = 410859120. Its totient is φ = 113923584.

The previous prime is 231303383. The next prime is 231303419. The reversal of 231303404 is 404303132.

231303404 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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142952 + ... + 144560.

It is an arithmetic number, because the mean of its divisors is an integer number (17119130).

Almost surely, 2^231303404 is an apocalyptic number.

It is an amenable number.

231303404 is a deficient number, since it is larger than the sum of its proper divisors (179555716).

231303404 is a wasteful number, since it uses less digits than its factorization.

231303404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2129 (or 2127 counting only the distinct ones).

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

The square root of 231303404 is about 15208.6621370849. The cubic root of 231303404 is about 613.8477590487.

Adding to 231303404 its reverse (404303132), we get a palindrome (635606536).

The spelling of 231303404 in words is "two hundred thirty-one million, three hundred three thousand, four hundred four".