3122313321 has 4 divisors (see below), whose sum is σ = 4163084432. Its totient is φ = 2081542212.

The previous prime is 3122313307. The next prime is 3122313349. The reversal of 3122313321 is 1233132213.

3122313321 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3122313321 - 2¹³ = 3122305129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3122313371) 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, 520385551 + ... + 520385556.

It is an arithmetic number, because the mean of its divisors is an integer number (1040771108).

Almost surely, 2^3122313321 is an apocalyptic number.

It is an amenable number.

3122313321 is a deficient number, since it is larger than the sum of its proper divisors (1040771111).

3122313321 is a wasteful number, since it uses less digits than its factorization.

3122313321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040771110.

The product of its digits is 648, while the sum is 21.

The square root of 3122313321 is about 55877.6638828074. The cubic root of 3122313321 is about 1461.5897678017.

Adding to 3122313321 its reverse (1233132213), we get a palindrome (4355445534).

It can be divided in two parts, 31223 and 13321, that added together give a palindrome (44544).

The spelling of 3122313321 in words is "three billion, one hundred twenty-two million, three hundred thirteen thousand, three hundred twenty-one".