12015650443 has 2 divisors, whose sum is σ = 12015650444. Its totient is φ = 12015650442.

The previous prime is 12015650411. The next prime is 12015650453. The reversal of 12015650443 is 34405651021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12015650443 - 2⁵ = 12015650411 is a prime.

It is not a weakly prime, because it can be changed into another prime (12015650453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6007825221 + 6007825222.

It is an arithmetic number, because the mean of its divisors is an integer number (6007825222).

Almost surely, 2^12015650443 is an apocalyptic number.

12015650443 is a deficient number, since it is larger than the sum of its proper divisors (1).

12015650443 is an equidigital number, since it uses as much as digits as its factorization.

12015650443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 12015650443 in words is "twelve billion, fifteen million, six hundred fifty thousand, four hundred forty-three".