13120321110 has 32 divisors (see below), whose sum is σ = 33910984800. Its totient is φ = 3229617408.

The previous prime is 13120321087. The next prime is 13120321127. The reversal of 13120321110 is 1112302131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 13120321110.

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, 16820535 + ... + 16821314.

It is an arithmetic number, because the mean of its divisors is an integer number (1059718275).

Almost surely, 2^13120321110 is an apocalyptic number.

13120321110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13120321110 is an abundant number, since it is smaller than the sum of its proper divisors (20790663690).

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

13120321110 is a wasteful number, since it uses less digits than its factorization.

13120321110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33641872.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 13120321110 its reverse (1112302131), we get a palindrome (14232623241).

The spelling of 13120321110 in words is "thirteen billion, one hundred twenty million, three hundred twenty-one thousand, one hundred ten".