13011123120 has 40 divisors (see below), whose sum is σ = 40334482416. Its totient is φ = 3469632768.

The previous prime is 13011123071. The next prime is 13011123143. The reversal of 13011123120 is 2132111031.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-3 number, since 3×13011123120³ (a number of 31 digits) contains 333 as substring.

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 13011123120.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27106267 + ... + 27106746.

Almost surely, 2^13011123120 is an apocalyptic number.

13011123120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13011123120 is an abundant number, since it is smaller than the sum of its proper divisors (27323359296).

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

13011123120 is a wasteful number, since it uses less digits than its factorization.

13011123120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54213029 (or 54213023 counting only the distinct ones).

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

Adding to 13011123120 its reverse (2132111031), we get a palindrome (15143234151).

The spelling of 13011123120 in words is "thirteen billion, eleven million, one hundred twenty-three thousand, one hundred twenty".