311311101333011 has 4 divisors (see below), whose sum is σ = 335258109127872. Its totient is φ = 287364093538152.

The previous prime is 311311101332989. The next prime is 311311101333097. The reversal of 311311101333011 is 110333101113113.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311311101333011 is a prime.

It is a super-2 number, since 2×311311101333011² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311311101333811) 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, 11973503897411 + ... + 11973503897436.

It is an arithmetic number, because the mean of its divisors is an integer number (83814527281968).

Almost surely, 2^{311311101333011} is an apocalyptic number.

311311101333011 is a deficient number, since it is larger than the sum of its proper divisors (23947007794861).

311311101333011 is a wasteful number, since it uses less digits than its factorization.

311311101333011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23947007794860.

The product of its (nonzero) digits is 243, while the sum is 23.

Adding to 311311101333011 its reverse (110333101113113), we get a palindrome (421644202446124).

The spelling of 311311101333011 in words is "three hundred eleven trillion, three hundred eleven billion, one hundred one million, three hundred thirty-three thousand, eleven".