3122120311 has 4 divisors (see below), whose sum is σ = 3132290392. Its totient is φ = 3111950232.

The previous prime is 3122120297. The next prime is 3122120341. The reversal of 3122120311 is 1130212213.

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

It is a cyclic number.

It is not a de Polignac number, because 3122120311 - 2⁹ = 3122119799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3122120341) 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, 5084580 + ... + 5085193.

It is an arithmetic number, because the mean of its divisors is an integer number (783072598).

Almost surely, 2^3122120311 is an apocalyptic number.

3122120311 is a deficient number, since it is larger than the sum of its proper divisors (10170081).

3122120311 is a wasteful number, since it uses less digits than its factorization.

3122120311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10170080.

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

The square root of 3122120311 is about 55875.9367796192. The cubic root of 3122120311 is about 1461.5596504682.

Adding to 3122120311 its reverse (1130212213), we get a palindrome (4252332524).

The spelling of 3122120311 in words is "three billion, one hundred twenty-two million, one hundred twenty thousand, three hundred eleven".