13112331210520 has 32 divisors (see below), whose sum is σ = 29502889380720. Its totient is φ = 5244906856320.

The previous prime is 13112331210509. The next prime is 13112331210541. The reversal of 13112331210520 is 2501213321131.

It is a super-3 number, since 3×13112331210520³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8954890 + ... + 10315750.

Almost surely, 2^{13112331210520} is an apocalyptic number.

13112331210520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13112331210520 is an abundant number, since it is smaller than the sum of its proper divisors (16390558170200).

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

13112331210520 is a wasteful number, since it uses less digits than its factorization.

13112331210520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601755 (or 1601751 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 13112331210520 its reverse (2501213321131), we get a palindrome (15613544531651).

The spelling of 13112331210520 in words is "thirteen trillion, one hundred twelve billion, three hundred thirty-one million, two hundred ten thousand, five hundred twenty".