13112121120 has 96 divisors (see below), whose sum is σ = 47203648128. Its totient is φ = 2997055488.

The previous prime is 13112121059. The next prime is 13112121151. The reversal of 13112121120 is 2112121131.

It is a tau number, because it is divible by the number of its divisors (96).

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 13112121120.

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, 1947849 + ... + 1954568.

It is an arithmetic number, because the mean of its divisors is an integer number (491704668).

Almost surely, 2^13112121120 is an apocalyptic number.

13112121120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13112121120 is an abundant number, since it is smaller than the sum of its proper divisors (34091527008).

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

13112121120 is a wasteful number, since it uses less digits than its factorization.

13112121120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3902442 (or 3902434 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 13112121120 its reverse (2112121131), we get a palindrome (15224242251).

The spelling of 13112121120 in words is "thirteen billion, one hundred twelve million, one hundred twenty-one thousand, one hundred twenty".