13231203120 has 320 divisors, whose sum is σ = 47354112000. Its totient is φ = 3394720512.

The previous prime is 13231203101. The next prime is 13231203131. The reversal of 13231203120 is 2130213231.

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 = 13231203093 and 13231203102.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 224257651 + ... + 224257709.

It is an arithmetic number, because the mean of its divisors is an integer number (147981600).

Almost surely, 2^13231203120 is an apocalyptic number.

13231203120 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 13231203120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23677056000).

13231203120 is an abundant number, since it is smaller than the sum of its proper divisors (34122908880).

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

13231203120 is an frugal number, since it uses more digits than its factorization.

13231203120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 116 counting only the distinct ones).

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

Adding to 13231203120 its reverse (2130213231), we get a palindrome (15361416351).

The spelling of 13231203120 in words is "thirteen billion, two hundred thirty-one million, two hundred three thousand, one hundred twenty".