3122020313 has 4 divisors (see below), whose sum is σ = 3124786740. Its totient is φ = 3119253888.

The previous prime is 3122020309. The next prime is 3122020417. The reversal of 3122020313 is 3130202213.

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 326994889 + 2795025424 = 18083^2 + 52868^2 .

It is a cyclic number.

It is not a de Polignac number, because 3122020313 - 2² = 3122020309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3122020291 and 3122020300.

It is not an unprimeable number, because it can be changed into a prime (3122028313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1381520 + ... + 1383777.

It is an arithmetic number, because the mean of its divisors is an integer number (781196685).

Almost surely, 2^3122020313 is an apocalyptic number.

It is an amenable number.

3122020313 is a deficient number, since it is larger than the sum of its proper divisors (2766427).

3122020313 is a wasteful number, since it uses less digits than its factorization.

3122020313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2766426.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 3122020313 is about 55875.0419507672. The cubic root of 3122020313 is about 1461.5440462647.

Adding to 3122020313 its reverse (3130202213), we get a palindrome (6252222526).

The spelling of 3122020313 in words is "three billion, one hundred twenty-two million, twenty thousand, three hundred thirteen".