313211123311 has 4 divisors (see below), whose sum is σ = 313213294072. Its totient is φ = 313208952552.

The previous prime is 313211123287. The next prime is 313211123363. The reversal of 313211123311 is 113321112313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 113321112313 = 211 ⋅537066883.

It is a cyclic number.

It is not a de Polignac number, because 313211123311 - 2⁹ = 313211122799 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 (313211123371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 852261 + ... + 1163086.

It is an arithmetic number, because the mean of its divisors is an integer number (78303323518).

Almost surely, 2^313211123311 is an apocalyptic number.

313211123311 is a deficient number, since it is larger than the sum of its proper divisors (2170761).

313211123311 is a wasteful number, since it uses less digits than its factorization.

313211123311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2170760.

The product of its digits is 324, while the sum is 22.

Adding to 313211123311 its reverse (113321112313), we get a palindrome (426532235624).

The spelling of 313211123311 in words is "three hundred thirteen billion, two hundred eleven million, one hundred twenty-three thousand, three hundred eleven".