12101020027 has 2 divisors, whose sum is σ = 12101020028. Its totient is φ = 12101020026.

The previous prime is 12101019977. The next prime is 12101020031. The reversal of 12101020027 is 72002010121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12101020027 is a prime.

It is not a weakly prime, because it can be changed into another prime (12101020627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050510013 + 6050510014.

It is an arithmetic number, because the mean of its divisors is an integer number (6050510014).

Almost surely, 2^12101020027 is an apocalyptic number.

12101020027 is a deficient number, since it is larger than the sum of its proper divisors (1).

12101020027 is an equidigital number, since it uses as much as digits as its factorization.

12101020027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 16.

Adding to 12101020027 its reverse (72002010121), we get a palindrome (84103030148).

The spelling of 12101020027 in words is "twelve billion, one hundred one million, twenty thousand, twenty-seven".