13231000120 has 128 divisors (see below), whose sum is σ = 33241803840. Its totient is φ = 4708085760.

The previous prime is 13231000117. The next prime is 13231000141. The reversal of 13231000120 is 2100013231.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 13231000120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1765822 + ... + 1773298.

Almost surely, 2^13231000120 is an apocalyptic number.

13231000120 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 13231000120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16620901920).

13231000120 is an abundant number, since it is smaller than the sum of its proper divisors (20010803720).

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

13231000120 is a wasteful number, since it uses less digits than its factorization.

13231000120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7625 (or 7621 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 13231000120 its reverse (2100013231), we get a palindrome (15331013351).

The spelling of 13231000120 in words is "thirteen billion, two hundred thirty-one million, one hundred twenty", and thus it is an aban number.