340231303 has 2 divisors, whose sum is σ = 340231304. Its totient is φ = 340231302.

The previous prime is 340231301. The next prime is 340231357. The reversal of 340231303 is 303132043.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 340231303 - 2¹ = 340231301 is a prime.

Together with 340231301, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340231301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170115651 + 170115652.

It is an arithmetic number, because the mean of its divisors is an integer number (170115652).

Almost surely, 2^340231303 is an apocalyptic number.

340231303 is a deficient number, since it is larger than the sum of its proper divisors (1).

340231303 is an equidigital number, since it uses as much as digits as its factorization.

340231303 is an evil number, because the sum of its binary digits is even.

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

The square root of 340231303 is about 18445.3599314299. The cubic root of 340231303 is about 698.1114420192. Note that the first 3 decimals are identical.

Adding to 340231303 its reverse (303132043), we get a palindrome (643363346).

The spelling of 340231303 in words is "three hundred forty million, two hundred thirty-one thousand, three hundred three".