310121 has 6 divisors (see below), whose sum is σ = 360810. Its totient is φ = 265776.

The previous prime is 310117. The next prime is 310127. The reversal of 310121 is 121013.

It can be written as a sum of positive squares in only one way, i.e., 290521 + 19600 = 539^2 + 140^2 .

It is not a de Polignac number, because 310121 - 2² = 310117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 310099 and 310108.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 310121.

It is not an unprimeable number, because it can be changed into a prime (310127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3116 + ... + 3213.

It is an arithmetic number, because the mean of its divisors is an integer number (60135).

2³¹⁰¹²¹ is an apocalyptic number.

It is an amenable number.

310121 is a deficient number, since it is larger than the sum of its proper divisors (50689).

310121 is an equidigital number, since it uses as much as digits as its factorization.

310121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6343 (or 6336 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 310121 is about 556.8850868896. The cubic root of 310121 is about 67.6877989222.

Adding to 310121 its reverse (121013), we get a palindrome (431134).

It can be divided in two parts, 31012 and 1, that added together give a palindrome (31013).

The spelling of 310121 in words is "three hundred ten thousand, one hundred twenty-one", and thus it is an iban number.