313423505 has 16 divisors (see below), whose sum is σ = 380835840. Its totient is φ = 247603392.

The previous prime is 313423501. The next prime is 313423511. The reversal of 313423505 is 505324313.

It is a cyclic number.

It is not a de Polignac number, because 313423505 - 2² = 313423501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (313423501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199232 + ... + 200798.

It is an arithmetic number, because the mean of its divisors is an integer number (23802240).

Almost surely, 2^313423505 is an apocalyptic number.

It is an amenable number.

313423505 is a deficient number, since it is larger than the sum of its proper divisors (67412335).

313423505 is a wasteful number, since it uses less digits than its factorization.

313423505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2048.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 313423505 is about 17703.7709259920. The cubic root of 313423505 is about 679.2722209301.

Adding to 313423505 its reverse (505324313), we get a palindrome (818747818).

The spelling of 313423505 in words is "three hundred thirteen million, four hundred twenty-three thousand, five hundred five".