12112321087 has 2 divisors, whose sum is σ = 12112321088. Its totient is φ = 12112321086.

The previous prime is 12112321079. The next prime is 12112321103. The reversal of 12112321087 is 78012321121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12112321087 - 2³ = 12112321079 is a prime.

It is a super-2 number, since 2×12112321087² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12112328087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6056160543 + 6056160544.

It is an arithmetic number, because the mean of its divisors is an integer number (6056160544).

Almost surely, 2^12112321087 is an apocalyptic number.

12112321087 is a deficient number, since it is larger than the sum of its proper divisors (1).

12112321087 is an equidigital number, since it uses as much as digits as its factorization.

12112321087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 28.

The spelling of 12112321087 in words is "twelve billion, one hundred twelve million, three hundred twenty-one thousand, eighty-seven".