11204135204520 has 64 divisors (see below), whose sum is σ = 35073814561920. Its totient is φ = 2857866370304.

The previous prime is 11204135204503. The next prime is 11204135204579. The reversal of 11204135204520 is 2540253140211.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2029731879 + ... + 2029737398.

It is an arithmetic number, because the mean of its divisors is an integer number (548028352530).

Almost surely, 2^{11204135204520} is an apocalyptic number.

11204135204520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11204135204520 is an abundant number, since it is smaller than the sum of its proper divisors (23869679357400).

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

11204135204520 is a wasteful number, since it uses less digits than its factorization.

11204135204520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4059469314 (or 4059469310 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 11204135204520 its reverse (2540253140211), we get a palindrome (13744388344731).

The spelling of 11204135204520 in words is "eleven trillion, two hundred four billion, one hundred thirty-five million, two hundred four thousand, five hundred twenty".