231303199 has 2 divisors, whose sum is σ = 231303200. Its totient is φ = 231303198.

The previous prime is 231303179. The next prime is 231303221. The reversal of 231303199 is 991303132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231303199 - 2⁵ = 231303167 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231303199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231303109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115651599 + 115651600.

It is an arithmetic number, because the mean of its divisors is an integer number (115651600).

Almost surely, 2^231303199 is an apocalyptic number.

231303199 is a deficient number, since it is larger than the sum of its proper divisors (1).

231303199 is an equidigital number, since it uses as much as digits as its factorization.

231303199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4374, while the sum is 31.

The square root of 231303199 is about 15208.6553975031. The cubic root of 231303199 is about 613.8475777012.

The spelling of 231303199 in words is "two hundred thirty-one million, three hundred three thousand, one hundred ninety-nine".