12321544110 has 32 divisors (see below), whose sum is σ = 29701994112. Its totient is φ = 3271268640.

The previous prime is 12321544097. The next prime is 12321544117. The reversal of 12321544110 is 1144512321.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12321544117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 897856 + ... + 911475.

It is an arithmetic number, because the mean of its divisors is an integer number (928187316).

Almost surely, 2^12321544110 is an apocalyptic number.

12321544110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12321544110 is an abundant number, since it is smaller than the sum of its proper divisors (17380450002).

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

12321544110 is a wasteful number, since it uses less digits than its factorization.

12321544110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1809568.

The product of its (nonzero) digits is 960, while the sum is 24.

The spelling of 12321544110 in words is "twelve billion, three hundred twenty-one million, five hundred forty-four thousand, one hundred ten".