313216103 has 4 divisors (see below), whose sum is σ = 313335528. Its totient is φ = 313096680.

The previous prime is 313216091. The next prime is 313216117. The reversal of 313216103 is 301612313.

It is a happy number.

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 313216103 - 2⁶ = 313216039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313216133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55688 + ... + 61053.

It is an arithmetic number, because the mean of its divisors is an integer number (78333882).

Almost surely, 2^313216103 is an apocalyptic number.

313216103 is a deficient number, since it is larger than the sum of its proper divisors (119425).

313216103 is a wasteful number, since it uses less digits than its factorization.

313216103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119424.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 313216103 is about 17697.9123910138. The cubic root of 313216103 is about 679.1223560755.

Adding to 313216103 its reverse (301612313), we get a palindrome (614828416).

The spelling of 313216103 in words is "three hundred thirteen million, two hundred sixteen thousand, one hundred three".