20010001027 has 2 divisors, whose sum is σ = 20010001028. Its totient is φ = 20010001026.

The previous prime is 20010001021. The next prime is 20010001051. The reversal of 20010001027 is 72010001002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20010001027 - 2¹⁵ = 20009968259 is a prime.

It is a super-2 number, since 2×20010001027² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20010000998 and 20010001016.

It is not a weakly prime, because it can be changed into another prime (20010001021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005000513 + 10005000514.

It is an arithmetic number, because the mean of its divisors is an integer number (10005000514).

Almost surely, 2^20010001027 is an apocalyptic number.

20010001027 is a deficient number, since it is larger than the sum of its proper divisors (1).

20010001027 is an equidigital number, since it uses as much as digits as its factorization.

20010001027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28, while the sum is 13.

Adding to 20010001027 its reverse (72010001002), we get a palindrome (92020002029).

The spelling of 20010001027 in words is "twenty billion, ten million, one thousand, twenty-seven".