12303121012 has 48 divisors (see below), whose sum is σ = 26509392000. Its totient is φ = 4865265792.

The previous prime is 12303120989. The next prime is 12303121057. The reversal of 12303121012 is 21012130321.

It is a congruent number.

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, 1257114 + ... + 1266862.

It is an arithmetic number, because the mean of its divisors is an integer number (552279000).

Almost surely, 2^12303121012 is an apocalyptic number.

It is an amenable number.

12303121012 is an abundant number, since it is smaller than the sum of its proper divisors (14206270988).

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

12303121012 is a wasteful number, since it uses less digits than its factorization.

12303121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13240 (or 13238 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12303121012 its reverse (21012130321), we get a palindrome (33315251333).

The spelling of 12303121012 in words is "twelve billion, three hundred three million, one hundred twenty-one thousand, twelve".