313122203 has 4 divisors (see below), whose sum is σ = 316640520. Its totient is φ = 309603888.

The previous prime is 313122191. The next prime is 313122221. The reversal of 313122203 is 302221313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 313122203 - 2²⁰ = 312073627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313122503) 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 3 ways as a sum of consecutive naturals, for example, 1759025 + ... + 1759202.

It is an arithmetic number, because the mean of its divisors is an integer number (79160130).

Almost surely, 2^313122203 is an apocalyptic number.

313122203 is a deficient number, since it is larger than the sum of its proper divisors (3518317).

313122203 is an equidigital number, since it uses as much as digits as its factorization.

313122203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3518316.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 313122203 is about 17695.2593368959. The cubic root of 313122203 is about 679.0544839129.

Adding to 313122203 its reverse (302221313), we get a palindrome (615343516).

The spelling of 313122203 in words is "three hundred thirteen million, one hundred twenty-two thousand, two hundred three".