12101311320 has 64 divisors (see below), whose sum is σ = 41490213120. Its totient is φ = 2766013824.

The previous prime is 12101311309. The next prime is 12101311361. The reversal of 12101311320 is 2311310121.

It is a happy number.

12101311320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12101311320.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7202322 + ... + 7204001.

It is an arithmetic number, because the mean of its divisors is an integer number (648284580).

Almost surely, 2^12101311320 is an apocalyptic number.

12101311320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12101311320 is an abundant number, since it is smaller than the sum of its proper divisors (29388901800).

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

12101311320 is a wasteful number, since it uses less digits than its factorization.

12101311320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14406344 (or 14406340 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 12101311320 its reverse (2311310121), we get a palindrome (14412621441).

The spelling of 12101311320 in words is "twelve billion, one hundred one million, three hundred eleven thousand, three hundred twenty".