12043015987 has 2 divisors, whose sum is σ = 12043015988. Its totient is φ = 12043015986.

The previous prime is 12043015973. The next prime is 12043015991. The reversal of 12043015987 is 78951034021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12043015987 - 2²⁷ = 11908798259 is a prime.

It is not a weakly prime, because it can be changed into another prime (12043015927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6021507993 + 6021507994.

It is an arithmetic number, because the mean of its divisors is an integer number (6021507994).

Almost surely, 2^12043015987 is an apocalyptic number.

12043015987 is a deficient number, since it is larger than the sum of its proper divisors (1).

12043015987 is an equidigital number, since it uses as much as digits as its factorization.

12043015987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 12043015987 in words is "twelve billion, forty-three million, fifteen thousand, nine hundred eighty-seven".