315203323 has 2 divisors, whose sum is σ = 315203324. Its totient is φ = 315203322.

The previous prime is 315203303. The next prime is 315203327. The reversal of 315203323 is 323302513.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315203323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 315203294 and 315203303.

It is not a weakly prime, because it can be changed into another prime (315203327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157601661 + 157601662.

It is an arithmetic number, because the mean of its divisors is an integer number (157601662).

Almost surely, 2^315203323 is an apocalyptic number.

315203323 is a deficient number, since it is larger than the sum of its proper divisors (1).

315203323 is an equidigital number, since it uses as much as digits as its factorization.

315203323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 22.

The square root of 315203323 is about 17753.9664019058. The cubic root of 315203323 is about 680.5555746508. Note that the first 4 decimals are identical.

Adding to 315203323 its reverse (323302513), we get a palindrome (638505836).

It can be divided in two parts, 31520 and 3323, that added together give a palindrome (34843).

The spelling of 315203323 in words is "three hundred fifteen million, two hundred three thousand, three hundred twenty-three".