211104455320 has 96 divisors (see below), whose sum is σ = 522480924000. Its totient is φ = 76707924480.

The previous prime is 211104455281. The next prime is 211104455323. The reversal of 211104455320 is 23554401112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211104455323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6755572 + ... + 6786748.

It is an arithmetic number, because the mean of its divisors is an integer number (5442509625).

Almost surely, 2^211104455320 is an apocalyptic number.

211104455320 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 211104455320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (261240462000).

211104455320 is an abundant number, since it is smaller than the sum of its proper divisors (311376468680).

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

211104455320 is a wasteful number, since it uses less digits than its factorization.

211104455320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32609 (or 32594 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 211104455320 its reverse (23554401112), we get a palindrome (234658856432).

The spelling of 211104455320 in words is "two hundred eleven billion, one hundred four million, four hundred fifty-five thousand, three hundred twenty".