11205342143320 has 128 divisors (see below), whose sum is σ = 28455628924800. Its totient is φ = 3940189507584.

The previous prime is 11205342143309. The next prime is 11205342143323. The reversal of 11205342143320 is 2334124350211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11205342143323) 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, 693204 + ... + 4784476.

It is an arithmetic number, because the mean of its divisors is an integer number (222309600975).

Almost surely, 2^{11205342143320} is an apocalyptic number.

11205342143320 is a gapful number since it is divisible by the number (10) 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 11205342143320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14227814462400).

11205342143320 is an abundant number, since it is smaller than the sum of its proper divisors (17250286781480).

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

11205342143320 is a wasteful number, since it uses less digits than its factorization.

11205342143320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4091549 (or 4091545 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 11205342143320 its reverse (2334124350211), we get a palindrome (13539466493531).

The spelling of 11205342143320 in words is "eleven trillion, two hundred five billion, three hundred forty-two million, one hundred forty-three thousand, three hundred twenty".