12001433243 has 2 divisors, whose sum is σ = 12001433244. Its totient is φ = 12001433242.

The previous prime is 12001433233. The next prime is 12001433263. The reversal of 12001433243 is 34233410021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12001433243 - 2⁶ = 12001433179 is a prime.

It is not a weakly prime, because it can be changed into another prime (12001433233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000716621 + 6000716622.

It is an arithmetic number, because the mean of its divisors is an integer number (6000716622).

Almost surely, 2^12001433243 is an apocalyptic number.

12001433243 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001433243 is an equidigital number, since it uses as much as digits as its factorization.

12001433243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 12001433243 its reverse (34233410021), we get a palindrome (46234843264).

The spelling of 12001433243 in words is "twelve billion, one million, four hundred thirty-three thousand, two hundred forty-three".