12243043412 has 12 divisors (see below), whose sum is σ = 21438554676. Its totient is φ = 6117742080.

The previous prime is 12243043409. The next prime is 12243043427. The reversal of 12243043412 is 21434034221.

It can be written as a sum of positive squares in 2 ways, for example, as 9316882576 + 2926160836 = 96524^2 + 54094^2 .

It is a super-2 number, since 2×12243043412² (a number of 21 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, 937613 + ... + 950580.

It is an arithmetic number, because the mean of its divisors is an integer number (1786546223).

Almost surely, 2^12243043412 is an apocalyptic number.

It is an amenable number.

12243043412 is a deficient number, since it is larger than the sum of its proper divisors (9195511264).

12243043412 is a wasteful number, since it uses less digits than its factorization.

12243043412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1889818 (or 1889816 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 12243043412 its reverse (21434034221), we get a palindrome (33677077633).

The spelling of 12243043412 in words is "twelve billion, two hundred forty-three million, forty-three thousand, four hundred twelve".