311311211311 has 8 divisors (see below), whose sum is σ = 327882432384. Its totient is φ = 294992986200.

The previous prime is 311311211303. The next prime is 311311211329. The reversal of 311311211311 is 113112113113.

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 311311211311 - 2³ = 311311211303 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 (311311211011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63246465 + ... + 63251386.

It is an arithmetic number, because the mean of its divisors is an integer number (40985304048).

Almost surely, 2^311311211311 is an apocalyptic number.

311311211311 is a deficient number, since it is larger than the sum of its proper divisors (16571221073).

311311211311 is a wasteful number, since it uses less digits than its factorization.

311311211311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126497981.

The product of its digits is 54, while the sum is 19.

Adding to 311311211311 its reverse (113112113113), we get a palindrome (424423324424).

It can be divided in two parts, 3 and 11311211311, that multiplied together give a palindrome (33933633933).

The spelling of 311311211311 in words is "three hundred eleven billion, three hundred eleven million, two hundred eleven thousand, three hundred eleven".