311111301311 has 8 divisors (see below), whose sum is σ = 333113225760. Its totient is φ = 289520627968.

The previous prime is 311111301301. The next prime is 311111301317. The reversal of 311111301311 is 113103111113.

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 311111301311 - 2¹⁸ = 311111039167 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 311111301311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311111301317) 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, 102811211 + ... + 102814236.

It is an arithmetic number, because the mean of its divisors is an integer number (41639153220).

Almost surely, 2^311111301311 is an apocalyptic number.

311111301311 is a deficient number, since it is larger than the sum of its proper divisors (22001924449).

311111301311 is a wasteful number, since it uses less digits than its factorization.

311111301311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205625553.

The product of its (nonzero) digits is 27, while the sum is 17.

Adding to 311111301311 its reverse (113103111113), we get a palindrome (424214412424).

The spelling of 311111301311 in words is "three hundred eleven billion, one hundred eleven million, three hundred one thousand, three hundred eleven".