3111313320 has 96 divisors (see below), whose sum is σ = 10147831200. Its totient is φ = 826724736.

The previous prime is 3111313319. The next prime is 3111313321. The reversal of 3111313320 is 233131113.

It is a happy number.

3111313320 is a `hidden beast` number, since 31 + 1 + 1 + 313 + 320 = 666.

It is an interprime number because it is at equal distance from previous prime (3111313319) and next prime (3111313321).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 3111313293 and 3111313302.

It is not an unprimeable number, because it can be changed into a prime (3111313321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86611 + ... + 117149.

It is an arithmetic number, because the mean of its divisors is an integer number (105706575).

Almost surely, 2^3111313320 is an apocalyptic number.

3111313320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3111313320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5073915600).

3111313320 is an abundant number, since it is smaller than the sum of its proper divisors (7036517880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3111313320 is a wasteful number, since it uses less digits than its factorization.

3111313320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30839 (or 30832 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 3111313320 is about 55779.1477166871. The cubic root of 3111313320 is about 1459.8713403857.

Adding to 3111313320 its reverse (233131113), we get a palindrome (3344444433).

The spelling of 3111313320 in words is "three billion, one hundred eleven million, three hundred thirteen thousand, three hundred twenty".