3211112320 has 256 divisors, whose sum is σ = 8901809280. Its totient is φ = 1097072640.

The previous prime is 3211112293. The next prime is 3211112327. The reversal of 3211112320 is 232111123.

It is a super-2 number, since 2×3211112320² = 20622484663311564800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 3211112294 and 3211112303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3211112327) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10324965 + ... + 10325275.

Almost surely, 2^3211112320 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 3211112320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4450904640).

3211112320 is an abundant number, since it is smaller than the sum of its proper divisors (5690696960).

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

3211112320 is a wasteful number, since it uses less digits than its factorization.

3211112320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433 (or 421 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 3211112320 is about 56666.6773333323. The cubic root of 3211112320 is about 1475.3163844918.

Adding to 3211112320 its reverse (232111123), we get a palindrome (3443223443).

The spelling of 3211112320 in words is "three billion, two hundred eleven million, one hundred twelve thousand, three hundred twenty".