231245306 has 16 divisors (see below), whose sum is σ = 359116800. Its totient is φ = 111561840.

The previous prime is 231245303. The next prime is 231245309. The reversal of 231245306 is 603542132.

231245306 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (231245303) and next prime (231245309).

It is not an unprimeable number, because it can be changed into a prime (231245303) 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, 16295 + ... + 26981.

It is an arithmetic number, because the mean of its divisors is an integer number (22444800).

Almost surely, 2^231245306 is an apocalyptic number.

231245306 is a deficient number, since it is larger than the sum of its proper divisors (127871494).

231245306 is a wasteful number, since it uses less digits than its factorization.

231245306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11069.

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

The square root of 231245306 is about 15206.7519871931. The cubic root of 231245306 is about 613.7963600163.

Adding to 231245306 its reverse (603542132), we get a palindrome (834787438).

The spelling of 231245306 in words is "two hundred thirty-one million, two hundred forty-five thousand, three hundred six".