13211312320 has 28 divisors (see below), whose sum is σ = 31459438224. Its totient is φ = 5284524800.

The previous prime is 13211312311. The next prime is 13211312321. The reversal of 13211312320 is 2321311231.

It is not an unprimeable number, because it can be changed into a prime (13211312321) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 20642356 + ... + 20642995.

Almost surely, 2^13211312320 is an apocalyptic number.

13211312320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13211312320 is an abundant number, since it is smaller than the sum of its proper divisors (18248125904).

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

13211312320 is an equidigital number, since it uses as much as digits as its factorization.

13211312320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41285368 (or 41285358 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 13211312320 its reverse (2321311231), we get a palindrome (15532623551).

The spelling of 13211312320 in words is "thirteen billion, two hundred eleven million, three hundred twelve thousand, three hundred twenty".