13231230120 has 160 divisors (see below), whose sum is σ = 44555999400. Its totient is φ = 3521636352.

The previous prime is 13231230119. The next prime is 13231230137. The reversal of 13231230120 is 2103213231.

13231230120 is a `hidden beast` number, since 1 + 32 + 312 + 301 + 20 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 11366544996 + 1864685124 = 106614^2 + 43182^2 .

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 = 13231230093 and 13231230102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1839972 + ... + 1847148.

Almost surely, 2^13231230120 is an apocalyptic number.

13231230120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13231230120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22277999700).

13231230120 is an abundant number, since it is smaller than the sum of its proper divisors (31324769280).

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

13231230120 is a wasteful number, since it uses less digits than its factorization.

13231230120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7769 (or 7756 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13231230120 its reverse (2103213231), we get a palindrome (15334443351).

The spelling of 13231230120 in words is "thirteen billion, two hundred thirty-one million, two hundred thirty thousand, one hundred twenty".