313203523 has 2 divisors, whose sum is σ = 313203524. Its totient is φ = 313203522.

The previous prime is 313203521. The next prime is 313203559. The reversal of 313203523 is 325302313.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 313203523 - 2¹ = 313203521 is a prime.

It is a super-2 number, since 2×313203523² = 196192893639223058, which contains 22 as substring.

Together with 313203521, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 313203494 and 313203503.

It is not a weakly prime, because it can be changed into another prime (313203521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156601761 + 156601762.

It is an arithmetic number, because the mean of its divisors is an integer number (156601762).

Almost surely, 2^313203523 is an apocalyptic number.

313203523 is a deficient number, since it is larger than the sum of its proper divisors (1).

313203523 is an equidigital number, since it uses as much as digits as its factorization.

313203523 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 313203523 is about 17697.5569782951. The cubic root of 313203523 is about 679.1132638720.

Adding to 313203523 its reverse (325302313), we get a palindrome (638505836).

It can be divided in two parts, 31320 and 3523, that added together give a palindrome (34843).

The spelling of 313203523 in words is "three hundred thirteen million, two hundred three thousand, five hundred twenty-three".