3113020021320 has 192 divisors, whose sum is σ = 11041177305600. Its totient is φ = 754390748160.

The previous prime is 3113020021291. The next prime is 3113020021327. The reversal of 3113020021320 is 231200203113.

3113020021320 is a `hidden beast` number, since 311 + 30 + 2 + 0 + 0 + 2 + 1 + 320 = 666.

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 = 3113020021293 and 3113020021302.

It is not an unprimeable number, because it can be changed into a prime (3113020021327) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10598601 + ... + 10888359.

It is an arithmetic number, because the mean of its divisors is an integer number (57506131800).

Almost surely, 2^{3113020021320} is an apocalyptic number.

3113020021320 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 3113020021320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5520588652800).

3113020021320 is an abundant number, since it is smaller than the sum of its proper divisors (7928157284280).

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

3113020021320 is a wasteful number, since it uses less digits than its factorization.

3113020021320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292500 (or 292493 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 3113020021320 its reverse (231200203113), we get a palindrome (3344220224433).

The spelling of 3113020021320 in words is "three trillion, one hundred thirteen billion, twenty million, twenty-one thousand, three hundred twenty".