311101211311 has 6 divisors (see below), whose sum is σ = 341954224136. Its totient is φ = 282819282900.

The previous prime is 311101211303. The next prime is 311101211341. The reversal of 311101211311 is 113112101113.

It is not a de Polignac number, because 311101211311 - 2³ = 311101211303 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 (311101211341) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1285542075 + ... + 1285542316.

Almost surely, 2^311101211311 is an apocalyptic number.

311101211311 is a deficient number, since it is larger than the sum of its proper divisors (30853012825).

311101211311 is a wasteful number, since it uses less digits than its factorization.

311101211311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2571084413 (or 2571084402 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 16.

Adding to 311101211311 its reverse (113112101113), we get a palindrome (424213312424).

It can be divided in two parts, 31110 and 1211311, that added together give a palindrome (1242421).

The spelling of 311101211311 in words is "three hundred eleven billion, one hundred one million, two hundred eleven thousand, three hundred eleven".