311133113111 has 8 divisors (see below), whose sum is σ = 325338439680. Its totient is φ = 296984269912.

The previous prime is 311133113041. The next prime is 311133113149. The reversal of 311133113111 is 111311331113.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 311133113111 - 2¹⁴ = 311133096727 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 (311133113411) 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 7 ways as a sum of consecutive naturals, for example, 14109575 + ... + 14131608.

It is an arithmetic number, because the mean of its divisors is an integer number (40667304960).

Almost surely, 2^311133113111 is an apocalyptic number.

311133113111 is a deficient number, since it is larger than the sum of its proper divisors (14205326569).

311133113111 is a wasteful number, since it uses less digits than its factorization.

311133113111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28241685.

The product of its digits is 81, while the sum is 20.

Adding to 311133113111 its reverse (111311331113), we get a palindrome (422444444224).

The spelling of 311133113111 in words is "three hundred eleven billion, one hundred thirty-three million, one hundred thirteen thousand, one hundred eleven".