20120026027 has 4 divisors (see below), whose sum is σ = 20146190680. Its totient is φ = 20093861376.

The previous prime is 20120026009. The next prime is 20120026033. The reversal of 20120026027 is 72062002102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20120026027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20120025989 and 20120026007.

It is not an unprimeable number, because it can be changed into a prime (20120026097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13081173 + ... + 13082710.

It is an arithmetic number, because the mean of its divisors is an integer number (5036547670).

Almost surely, 2^20120026027 is an apocalyptic number.

20120026027 is a deficient number, since it is larger than the sum of its proper divisors (26164653).

20120026027 is an equidigital number, since it uses as much as digits as its factorization.

20120026027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26164652.

The product of its (nonzero) digits is 672, while the sum is 22.

Adding to 20120026027 its reverse (72062002102), we get a palindrome (92182028129).

The spelling of 20120026027 in words is "twenty billion, one hundred twenty million, twenty-six thousand, twenty-seven".