311113223231 has 8 divisors (see below), whose sum is σ = 313538210304. Its totient is φ = 308688995160.

The previous prime is 311113223159. The next prime is 311113223251. The reversal of 311113223231 is 132322311113.

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 311113223231 - 2³⁰ = 310039481407 is a prime.

It is a super-2 number, since 2×311113223231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311113223197 and 311113223206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311113223251) 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, 647576 + ... + 1020578.

It is an arithmetic number, because the mean of its divisors is an integer number (39192276288).

Almost surely, 2^311113223231 is an apocalyptic number.

311113223231 is a deficient number, since it is larger than the sum of its proper divisors (2424987073).

311113223231 is a wasteful number, since it uses less digits than its factorization.

311113223231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379501.

The product of its digits is 648, while the sum is 23.

Adding to 311113223231 its reverse (132322311113), we get a palindrome (443435534344).

The spelling of 311113223231 in words is "three hundred eleven billion, one hundred thirteen million, two hundred twenty-three thousand, two hundred thirty-one".