3111122311201 has 4 divisors (see below), whose sum is σ = 3111427542852. Its totient is φ = 3110817079552.

The previous prime is 3111122311183. The next prime is 3111122311211. The reversal of 3111122311201 is 1021132211113.

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 2602411013601 + 508711297600 = 1613199^2 + 713240^2 .

It is a cyclic number.

It is not a de Polignac number, because 3111122311201 - 2³⁵ = 3076762572833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3111122311211) 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, 152600536 + ... + 152620921.

It is an arithmetic number, because the mean of its divisors is an integer number (777856885713).

Almost surely, 2^{3111122311201} is an apocalyptic number.

It is an amenable number.

3111122311201 is a deficient number, since it is larger than the sum of its proper divisors (305231651).

3111122311201 is a wasteful number, since it uses less digits than its factorization.

3111122311201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305231650.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 3111122311201 its reverse (1021132211113), we get a palindrome (4132254522314).

The spelling of 3111122311201 in words is "three trillion, one hundred eleven billion, one hundred twenty-two million, three hundred eleven thousand, two hundred one".