12541223320 has 16 divisors (see below), whose sum is σ = 28217752560. Its totient is φ = 5016489312.

The previous prime is 12541223287. The next prime is 12541223339. The reversal of 12541223320 is 2332214521.

12541223320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12541223320² (a number of 21 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 156765252 + ... + 156765331.

It is an arithmetic number, because the mean of its divisors is an integer number (1763609535).

Almost surely, 2^12541223320 is an apocalyptic number.

12541223320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12541223320 is an abundant number, since it is smaller than the sum of its proper divisors (15676529240).

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

12541223320 is a wasteful number, since it uses less digits than its factorization.

12541223320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313530594 (or 313530590 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 12541223320 its reverse (2332214521), we get a palindrome (14873437841).

The spelling of 12541223320 in words is "twelve billion, five hundred forty-one million, two hundred twenty-three thousand, three hundred twenty".