13521081024 has 672 divisors, whose sum is σ = 47290134528. Its totient is φ = 3649536000.

The previous prime is 13521081011. The next prime is 13521081043. The reversal of 13521081024 is 42018012531.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 185220252 + ... + 185220324.

It is an arithmetic number, because the mean of its divisors is an integer number (70372224).

Almost surely, 2^13521081024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13521081024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23645067264).

13521081024 is an abundant number, since it is smaller than the sum of its proper divisors (33769053504).

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

13521081024 is a wasteful number, since it uses less digits than its factorization.

13521081024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

Adding to 13521081024 its reverse (42018012531), we get a palindrome (55539093555).

The spelling of 13521081024 in words is "thirteen billion, five hundred twenty-one million, eighty-one thousand, twenty-four".