13113123120 has 60 divisors (see below), whose sum is σ = 44038240896. Its totient is φ = 3496832640.

The previous prime is 13113123119. The next prime is 13113123151. The reversal of 13113123120 is 2132131131.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 13113123093 and 13113123102.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9105616 + ... + 9107055.

Almost surely, 2^13113123120 is an apocalyptic number.

13113123120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13113123120 is an abundant number, since it is smaller than the sum of its proper divisors (30925117776).

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

13113123120 is a wasteful number, since it uses less digits than its factorization.

13113123120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18212690 (or 18212681 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 13113123120 its reverse (2132131131), we get a palindrome (15245254251).

The spelling of 13113123120 in words is "thirteen billion, one hundred thirteen million, one hundred twenty-three thousand, one hundred twenty".