12111441320 has 64 divisors (see below), whose sum is σ = 31292740800. Its totient is φ = 4172359680.

The previous prime is 12111441317. The next prime is 12111441337. The reversal of 12111441320 is 2314411121.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12111441292 and 12111441301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 716009 + ... + 732728.

It is an arithmetic number, because the mean of its divisors is an integer number (488949075).

Almost surely, 2^12111441320 is an apocalyptic number.

12111441320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12111441320 is an abundant number, since it is smaller than the sum of its proper divisors (19181299480).

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

12111441320 is a wasteful number, since it uses less digits than its factorization.

12111441320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1448778 (or 1448774 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 12111441320 its reverse (2314411121), we get a palindrome (14425852441).

The spelling of 12111441320 in words is "twelve billion, one hundred eleven million, four hundred forty-one thousand, three hundred twenty".