12011120987 has 2 divisors, whose sum is σ = 12011120988. Its totient is φ = 12011120986.

The previous prime is 12011120971. The next prime is 12011121013. The reversal of 12011120987 is 78902111021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12011120987 - 2⁴ = 12011120971 is a prime.

It is not a weakly prime, because it can be changed into another prime (12011120917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005560493 + 6005560494.

It is an arithmetic number, because the mean of its divisors is an integer number (6005560494).

Almost surely, 2^12011120987 is an apocalyptic number.

12011120987 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011120987 is an equidigital number, since it uses as much as digits as its factorization.

12011120987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 32.

The spelling of 12011120987 in words is "twelve billion, eleven million, one hundred twenty thousand, nine hundred eighty-seven".