11013454213520 has 80 divisors (see below), whose sum is σ = 28270680685632. Its totient is φ = 3956640698880.

The previous prime is 11013454213513. The next prime is 11013454213523. The reversal of 11013454213520 is 2531245431011.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (11013454213523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75320267 + ... + 75466346.

Almost surely, 2^{11013454213520} is an apocalyptic number.

11013454213520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11013454213520 is an abundant number, since it is smaller than the sum of its proper divisors (17257226472112).

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

11013454213520 is a wasteful number, since it uses less digits than its factorization.

11013454213520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150786720 (or 150786714 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 11013454213520 its reverse (2531245431011), we get a palindrome (13544699644531).

The spelling of 11013454213520 in words is "eleven trillion, thirteen billion, four hundred fifty-four million, two hundred thirteen thousand, five hundred twenty".