313304509123 has 2 divisors, whose sum is σ = 313304509124. Its totient is φ = 313304509122.

The previous prime is 313304509109. The next prime is 313304509129. The reversal of 313304509123 is 321905403313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 313304509123 - 2²¹ = 313302411971 is a prime.

It is not a weakly prime, because it can be changed into another prime (313304509129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156652254561 + 156652254562.

It is an arithmetic number, because the mean of its divisors is an integer number (156652254562).

Almost surely, 2^313304509123 is an apocalyptic number.

313304509123 is a deficient number, since it is larger than the sum of its proper divisors (1).

313304509123 is an equidigital number, since it uses as much as digits as its factorization.

313304509123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29160, while the sum is 34.

The spelling of 313304509123 in words is "three hundred thirteen billion, three hundred four million, five hundred nine thousand, one hundred twenty-three".