3111213320 has 128 divisors (see below), whose sum is σ = 7390310400. Its totient is φ = 1177363200.

The previous prime is 3111213277. The next prime is 3111213341. The reversal of 3111213320 is 233121113.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17380991 + ... + 17381169.

It is an arithmetic number, because the mean of its divisors is an integer number (57736800).

Almost surely, 2^3111213320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3111213320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3695155200).

3111213320 is an abundant number, since it is smaller than the sum of its proper divisors (4279097080).

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

3111213320 is a wasteful number, since it uses less digits than its factorization.

3111213320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459 (or 455 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 3111213320 is about 55778.2513171577. The cubic root of 3111213320 is about 1459.8556997561.

Adding to 3111213320 its reverse (233121113), we get a palindrome (3344334433).

The spelling of 3111213320 in words is "three billion, one hundred eleven million, two hundred thirteen thousand, three hundred twenty".