311123133311 has 8 divisors (see below), whose sum is σ = 330033421584. Its totient is φ = 292280503680.

The previous prime is 311123133289. The next prime is 311123133323. The reversal of 311123133311 is 113331321113.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311123133311 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 (311123133331) 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, 16905185 + ... + 16923578.

It is an arithmetic number, because the mean of its divisors is an integer number (41254177698).

Almost surely, 2^311123133311 is an apocalyptic number.

311123133311 is a deficient number, since it is larger than the sum of its proper divisors (18910288273).

311123133311 is a wasteful number, since it uses less digits than its factorization.

311123133311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33829321.

The product of its digits is 486, while the sum is 23.

Adding to 311123133311 its reverse (113331321113), we get a palindrome (424454454424).

The spelling of 311123133311 in words is "three hundred eleven billion, one hundred twenty-three million, one hundred thirty-three thousand, three hundred eleven".