313130121 has 16 divisors (see below), whose sum is σ = 428592384. Its totient is φ = 203256704.

The previous prime is 313130113. The next prime is 313130159. The reversal of 313130121 is 121031313.

It is a cyclic number.

It is not a de Polignac number, because 313130121 - 2³ = 313130113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 313130121.

It is not an unprimeable number, because it can be changed into a prime (313130921) 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, 22141 + ... + 33413.

It is an arithmetic number, because the mean of its divisors is an integer number (26787024).

Almost surely, 2^313130121 is an apocalyptic number.

It is an amenable number.

313130121 is a deficient number, since it is larger than the sum of its proper divisors (115462263).

313130121 is a wasteful number, since it uses less digits than its factorization.

313130121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11520.

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

The square root of 313130121 is about 17695.4830677210. The cubic root of 313130121 is about 679.0602076719.

Adding to 313130121 its reverse (121031313), we get a palindrome (434161434).

The spelling of 313130121 in words is "three hundred thirteen million, one hundred thirty thousand, one hundred twenty-one".