345236303 has 2 divisors, whose sum is σ = 345236304. Its totient is φ = 345236302.

The previous prime is 345236273. The next prime is 345236321. The reversal of 345236303 is 303632543.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 345236303 - 2⁶ = 345236239 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345226303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172618151 + 172618152.

It is an arithmetic number, because the mean of its divisors is an integer number (172618152).

Almost surely, 2^345236303 is an apocalyptic number.

345236303 is a deficient number, since it is larger than the sum of its proper divisors (1).

345236303 is an equidigital number, since it uses as much as digits as its factorization.

345236303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 29.

The square root of 345236303 is about 18580.5355950791. The cubic root of 345236303 is about 701.5180002856.

Adding to 345236303 its reverse (303632543), we get a palindrome (648868846).

The spelling of 345236303 in words is "three hundred forty-five million, two hundred thirty-six thousand, three hundred three".