13231211020320 has 384 divisors, whose sum is σ = 43455025152000. Its totient is φ = 3380245770240.

The previous prime is 13231211020267. The next prime is 13231211020343. The reversal of 13231211020320 is 2302011213231.

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, 4376846329 + ... + 4376849351.

It is an arithmetic number, because the mean of its divisors is an integer number (113164128000).

Almost surely, 2^{13231211020320} is an apocalyptic number.

13231211020320 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 13231211020320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21727512576000).

13231211020320 is an abundant number, since it is smaller than the sum of its proper divisors (30223814131680).

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

13231211020320 is a wasteful number, since it uses less digits than its factorization.

13231211020320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5928 (or 5920 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 13231211020320 its reverse (2302011213231), we get a palindrome (15533222233551).

The spelling of 13231211020320 in words is "thirteen trillion, two hundred thirty-one billion, two hundred eleven million, twenty thousand, three hundred twenty".