12120110987 has 2 divisors, whose sum is σ = 12120110988. Its totient is φ = 12120110986.

The previous prime is 12120110957. The next prime is 12120111007. The reversal of 12120110987 is 78901102121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12120110987 - 2¹⁴ = 12120094603 is a prime.

It is a super-2 number, since 2×12120110987² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12120110927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060055493 + 6060055494.

It is an arithmetic number, because the mean of its divisors is an integer number (6060055494).

Almost surely, 2^12120110987 is an apocalyptic number.

12120110987 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120110987 is an equidigital number, since it uses as much as digits as its factorization.

12120110987 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 12120110987 in words is "twelve billion, one hundred twenty million, one hundred ten thousand, nine hundred eighty-seven".