12302123111312 has 20 divisors (see below), whose sum is σ = 23866684660236. Its totient is φ = 6142978682880.

The previous prime is 12302123111293. The next prime is 12302123111321. The reversal of 12302123111312 is 21311132120321.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3149900841616 + 9152222269696 = 1774796^2 + 3025264^2 .

It is a super-2 number, since 2×12302123111312² (a number of 27 digits) contains 22 as substring.

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, 505166993 + ... + 505191344.

Almost surely, 2^{12302123111312} is an apocalyptic number.

It is an amenable number.

12302123111312 is a deficient number, since it is larger than the sum of its proper divisors (11564561548924).

12302123111312 is a wasteful number, since it uses less digits than its factorization.

12302123111312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010359106 (or 1010359100 counting only the distinct ones).

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

Adding to 12302123111312 its reverse (21311132120321), we get a palindrome (33613255231633).

Subtracting 12302123111312 from its reverse (21311132120321), we obtain a palindrome (9009009009009).

The spelling of 12302123111312 in words is "twelve trillion, three hundred two billion, one hundred twenty-three million, one hundred eleven thousand, three hundred twelve".