3112320121 has 4 divisors (see below), whose sum is σ = 3147290100. Its totient is φ = 3077350144.

The previous prime is 3112320109. The next prime is 3112320149. The reversal of 3112320121 is 1210232113.

3112320121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 157854096 + 2954466025 = 12564^2 + 54355^2 .

It is a cyclic number.

It is not a de Polignac number, because 3112320121 - 2⁵ = 3112320089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3112320095 and 3112320104.

It is not an unprimeable number, because it can be changed into a prime (3112320161) 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, 17484856 + ... + 17485033.

It is an arithmetic number, because the mean of its divisors is an integer number (786822525).

Almost surely, 2^3112320121 is an apocalyptic number.

It is an amenable number.

3112320121 is a deficient number, since it is larger than the sum of its proper divisors (34969979).

3112320121 is an equidigital number, since it uses as much as digits as its factorization.

3112320121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34969978.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 3112320121 is about 55788.1718736149. The cubic root of 3112320121 is about 1460.0287917322.

Adding to 3112320121 its reverse (1210232113), we get a palindrome (4322552234).

The spelling of 3112320121 in words is "three billion, one hundred twelve million, three hundred twenty thousand, one hundred twenty-one".