231340303 has 2 divisors, whose sum is σ = 231340304. Its totient is φ = 231340302.

The previous prime is 231340297. The next prime is 231340309. The reversal of 231340303 is 303043132.

It is a balanced prime because it is at equal distance from previous prime (231340297) and next prime (231340309).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231340303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231340309) by changing a digit.

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, 115670151 + 115670152.

It is an arithmetic number, because the mean of its divisors is an integer number (115670152).

Almost surely, 2^231340303 is an apocalyptic number.

231340303 is a deficient number, since it is larger than the sum of its proper divisors (1).

231340303 is an equidigital number, since it uses as much as digits as its factorization.

231340303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 231340303 is about 15209.8751802899. The cubic root of 231340303 is about 613.8803989547.

Adding to 231340303 its reverse (303043132), we get a palindrome (534383435).

The spelling of 231340303 in words is "two hundred thirty-one million, three hundred forty thousand, three hundred three".