20211110313320 has 256 divisors, whose sum is σ = 50126465917440. Its totient is φ = 7303454097408.

The previous prime is 20211110313319. The next prime is 20211110313323. The reversal of 20211110313320 is 2331301111202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20211110313292 and 20211110313301.

It is not an unprimeable number, because it can be changed into a prime (20211110313323) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 591244949 + ... + 591279131.

It is an arithmetic number, because the mean of its divisors is an integer number (195806507490).

Almost surely, 2^{20211110313320} is an apocalyptic number.

20211110313320 is a gapful number since it is divisible by the number (20) 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 20211110313320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25063232958720).

20211110313320 is an abundant number, since it is smaller than the sum of its proper divisors (29915355604120).

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

20211110313320 is a wasteful number, since it uses less digits than its factorization.

20211110313320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34604 (or 34600 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 20211110313320 its reverse (2331301111202), we get a palindrome (22542411424522).

The spelling of 20211110313320 in words is "twenty trillion, two hundred eleven billion, one hundred ten million, three hundred thirteen thousand, three hundred twenty".