12303111321212 has 12 divisors (see below), whose sum is σ = 21599232177936. Its totient is φ = 6131902127520.

The previous prime is 12303111321199. The next prime is 12303111321247. The reversal of 12303111321212 is 21212311130321.

It is a happy number.

It is a super-2 number, since 2×12303111321212² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4913381864 + ... + 4913384367.

It is an arithmetic number, because the mean of its divisors is an integer number (1799936014828).

Almost surely, 2^{12303111321212} is an apocalyptic number.

It is an amenable number.

12303111321212 is a deficient number, since it is larger than the sum of its proper divisors (9296120856724).

12303111321212 is a wasteful number, since it uses less digits than its factorization.

12303111321212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9826766548 (or 9826766546 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 12303111321212 its reverse (21212311130321), we get a palindrome (33515422451533).

The spelling of 12303111321212 in words is "twelve trillion, three hundred three billion, one hundred eleven million, three hundred twenty-one thousand, two hundred twelve".