3311211121111 has 4 divisors (see below), whose sum is σ = 3311226903424. Its totient is φ = 3311195338800.

The previous prime is 3311211121087. The next prime is 3311211121117. The reversal of 3311211121111 is 1111211121133.

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 3311211121111 - 2²⁷ = 3311076903383 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 (3311211121117) 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, 7572150 + ... + 7997491.

It is an arithmetic number, because the mean of its divisors is an integer number (827806725856).

Almost surely, 2^{3311211121111} is an apocalyptic number.

3311211121111 is a deficient number, since it is larger than the sum of its proper divisors (15782313).

3311211121111 is a wasteful number, since it uses less digits than its factorization.

3311211121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15782312.

The product of its digits is 36, while the sum is 19.

Adding to 3311211121111 its reverse (1111211121133), we get a palindrome (4422422242244).

The spelling of 3311211121111 in words is "three trillion, three hundred eleven billion, two hundred eleven million, one hundred twenty-one thousand, one hundred eleven".