13120433376828 has 48 divisors (see below), whose sum is σ = 31730799008160. Its totient is φ = 4214563225600.

The previous prime is 13120433376781. The next prime is 13120433376877. The reversal of 13120433376828 is 82867333402131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36001413 + ... + 36364028.

It is an arithmetic number, because the mean of its divisors is an integer number (661058312670).

Almost surely, 2^{13120433376828} is an apocalyptic number.

It is an amenable number.

13120433376828 is an abundant number, since it is smaller than the sum of its proper divisors (18610365631332).

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

13120433376828 is a wasteful number, since it uses less digits than its factorization.

13120433376828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72365998 (or 72365996 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 51.

Adding to 13120433376828 its reverse (82867333402131), we get a palindrome (95987766778959).

The spelling of 13120433376828 in words is "thirteen trillion, one hundred twenty billion, four hundred thirty-three million, three hundred seventy-six thousand, eight hundred twenty-eight".