12120375587 has 2 divisors, whose sum is σ = 12120375588. Its totient is φ = 12120375586.

The previous prime is 12120375569. The next prime is 12120375613. The reversal of 12120375587 is 78557302121.

It is a weak prime.

It is an emirp because it is prime and its reverse (78557302121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12120375587 - 2²⁴ = 12103598371 is a prime.

It is not a weakly prime, because it can be changed into another prime (12120375517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060187793 + 6060187794.

It is an arithmetic number, because the mean of its divisors is an integer number (6060187794).

Almost surely, 2^12120375587 is an apocalyptic number.

12120375587 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120375587 is an equidigital number, since it uses as much as digits as its factorization.

12120375587 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 117600, while the sum is 41.

The spelling of 12120375587 in words is "twelve billion, one hundred twenty million, three hundred seventy-five thousand, five hundred eighty-seven".