3111131133211 has 4 divisors (see below), whose sum is σ = 3157565926312. Its totient is φ = 3064696340112.

The previous prime is 3111131133197. The next prime is 3111131133293. The reversal of 3111131133211 is 1123311311113.

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 3111131133211 - 2⁵ = 3111131133179 is a prime.

It is a super-2 number, since 2×3111131133211² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3111131131211) 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, 23217396450 + ... + 23217396583.

It is an arithmetic number, because the mean of its divisors is an integer number (789391481578).

Almost surely, 2^{3111131133211} is an apocalyptic number.

3111131133211 is a deficient number, since it is larger than the sum of its proper divisors (46434793101).

3111131133211 is an equidigital number, since it uses as much as digits as its factorization.

3111131133211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46434793100.

The product of its digits is 162, while the sum is 22.

Adding to 3111131133211 its reverse (1123311311113), we get a palindrome (4234442444324).

The spelling of 3111131133211 in words is "three trillion, one hundred eleven billion, one hundred thirty-one million, one hundred thirty-three thousand, two hundred eleven".