20051213042027 has 2 divisors, whose sum is σ = 20051213042028. Its totient is φ = 20051213042026.

The previous prime is 20051213042011. The next prime is 20051213042033. The reversal of 20051213042027 is 72024031215002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20051213042027 - 2⁴ = 20051213042011 is a prime.

It is a super-4 number, since 4×20051213042027⁴ (a number of 54 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (20051213002027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10025606521013 + 10025606521014.

It is an arithmetic number, because the mean of its divisors is an integer number (10025606521014).

Almost surely, 2^{20051213042027} is an apocalyptic number.

20051213042027 is a deficient number, since it is larger than the sum of its proper divisors (1).

20051213042027 is an equidigital number, since it uses as much as digits as its factorization.

20051213042027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 29.

Adding to 20051213042027 its reverse (72024031215002), we get a palindrome (92075244257029).

The spelling of 20051213042027 in words is "twenty trillion, fifty-one billion, two hundred thirteen million, forty-two thousand, twenty-seven".