313520222 has 32 divisors (see below), whose sum is σ = 521240832. Its totient is φ = 140677504.

The previous prime is 313520219. The next prime is 313520227. The reversal of 313520222 is 222025313.

It is a junction number, because it is equal to n+sod(n) for n = 313520194 and 313520203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313520227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 458693 + ... + 459375.

It is an arithmetic number, because the mean of its divisors is an integer number (16288776).

Almost surely, 2^313520222 is an apocalyptic number.

313520222 is a deficient number, since it is larger than the sum of its proper divisors (207720610).

313520222 is a wasteful number, since it uses less digits than its factorization.

313520222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 313520222 is about 17706.5022519977. The cubic root of 313520222 is about 679.3420842448.

Adding to 313520222 its reverse (222025313), we get a palindrome (535545535).

It can be divided in two parts, 31 and 3520222, that added together give a palindrome (3520253).

The spelling of 313520222 in words is "three hundred thirteen million, five hundred twenty thousand, two hundred twenty-two".