1212233240043 has 16 divisors (see below), whose sum is σ = 2052458396160. Its totient is φ = 692704708488.

The previous prime is 1212233239967. The next prime is 1212233240047. The reversal of 1212233240043 is 3400423322121.

1212233240043 is a `hidden beast` number, since 1 + 2 + 1 + 223 + 32 + 400 + 4 + 3 = 666.

It is not a de Polignac number, because 1212233240043 - 2¹⁶ = 1212233174507 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1212233239989 and 1212233240016.

It is not an unprimeable number, because it can be changed into a prime (1212233240047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3206966055 + ... + 3206966432.

It is an arithmetic number, because the mean of its divisors is an integer number (128278649760).

Almost surely, 2^{1212233240043} is an apocalyptic number.

1212233240043 is a deficient number, since it is larger than the sum of its proper divisors (840225156117).

1212233240043 is an equidigital number, since it uses as much as digits as its factorization.

1212233240043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6413932503 (or 6413932497 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 1212233240043 its reverse (3400423322121), we get a palindrome (4612656562164).

The spelling of 1212233240043 in words is "one trillion, two hundred twelve billion, two hundred thirty-three million, two hundred forty thousand, forty-three".