313121103 has 8 divisors (see below), whose sum is σ = 435646848. Its totient is φ = 199671384.

The previous prime is 313121101. The next prime is 313121119. The reversal of 313121103 is 301121313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 313121103 - 2¹ = 313121101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313121101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2268925 + ... + 2269062.

It is an arithmetic number, because the mean of its divisors is an integer number (54455856).

Almost surely, 2^313121103 is an apocalyptic number.

313121103 is a deficient number, since it is larger than the sum of its proper divisors (122525745).

313121103 is a wasteful number, since it uses less digits than its factorization.

313121103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4538013.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 313121103 is about 17695.2282550975. The cubic root of 313121103 is about 679.0536887379.

Adding to 313121103 its reverse (301121313), we get a palindrome (614242416).

The spelling of 313121103 in words is "three hundred thirteen million, one hundred twenty-one thousand, one hundred three".