12355320140 has 24 divisors (see below), whose sum is σ = 26082024192. Its totient is φ = 4916251520.

The previous prime is 12355320073. The next prime is 12355320181. The reversal of 12355320140 is 4102355321.

It is a happy number.

12355320140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 1613369 + ... + 1621008.

It is an arithmetic number, because the mean of its divisors is an integer number (1086751008).

Almost surely, 2^12355320140 is an apocalyptic number.

12355320140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12355320140 is an abundant number, since it is smaller than the sum of its proper divisors (13726704052).

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

12355320140 is a wasteful number, since it uses less digits than its factorization.

12355320140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3234577 (or 3234575 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 12355320140 its reverse (4102355321), we get a palindrome (16457675461).

The spelling of 12355320140 in words is "twelve billion, three hundred fifty-five million, three hundred twenty thousand, one hundred forty".