13111210120 has 16 divisors (see below), whose sum is σ = 29500222860. Its totient is φ = 5244484032.

The previous prime is 13111210093. The next prime is 13111210139. The reversal of 13111210120 is 2101211131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11712001284 + 1399208836 = 108222^2 + 37406^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13111210120.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163890087 + ... + 163890166.

Almost surely, 2^13111210120 is an apocalyptic number.

13111210120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13111210120 is an abundant number, since it is smaller than the sum of its proper divisors (16389012740).

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

13111210120 is a wasteful number, since it uses less digits than its factorization.

13111210120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327780264 (or 327780260 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 13111210120 its reverse (2101211131), we get a palindrome (15212421251).

The spelling of 13111210120 in words is "thirteen billion, one hundred eleven million, two hundred ten thousand, one hundred twenty".