313530523 has 2 divisors, whose sum is σ = 313530524. Its totient is φ = 313530522.

The previous prime is 313530517. The next prime is 313530557. The reversal of 313530523 is 325035313.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (325035313) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313530523 is a prime.

It is not a weakly prime, because it can be changed into another prime (313530583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156765261 + 156765262.

It is an arithmetic number, because the mean of its divisors is an integer number (156765262).

Almost surely, 2^313530523 is an apocalyptic number.

313530523 is a deficient number, since it is larger than the sum of its proper divisors (1).

313530523 is an equidigital number, since it uses as much as digits as its factorization.

313530523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4050, while the sum is 25.

The square root of 313530523 is about 17706.7931314510. The cubic root of 313530523 is about 679.3495243031.

Adding to 313530523 its reverse (325035313), we get a palindrome (638565836).

The spelling of 313530523 in words is "three hundred thirteen million, five hundred thirty thousand, five hundred twenty-three".