13113026520 has 192 divisors, whose sum is σ = 43333889760. Its totient is φ = 3172055040.

The previous prime is 13113026513. The next prime is 13113026557. The reversal of 13113026520 is 2562031131.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10991044 + ... + 10992236.

Almost surely, 2^13113026520 is an apocalyptic number.

13113026520 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 13113026520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21666944880).

13113026520 is an abundant number, since it is smaller than the sum of its proper divisors (30220863240).

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

13113026520 is a wasteful number, since it uses less digits than its factorization.

13113026520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1986 (or 1971 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

Adding to 13113026520 its reverse (2562031131), we get a palindrome (15675057651).

The spelling of 13113026520 in words is "thirteen billion, one hundred thirteen million, twenty-six thousand, five hundred twenty".