20100101027 has 2 divisors, whose sum is σ = 20100101028. Its totient is φ = 20100101026.

The previous prime is 20100101003. The next prime is 20100101029. The reversal of 20100101027 is 72010100102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20100101027 - 2⁶ = 20100100963 is a prime.

It is a super-2 number, since 2×20100101027² (a number of 21 digits) contains 22 as substring.

Together with 20100101029, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20100101029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050050513 + 10050050514.

It is an arithmetic number, because the mean of its divisors is an integer number (10050050514).

Almost surely, 2^20100101027 is an apocalyptic number.

20100101027 is a deficient number, since it is larger than the sum of its proper divisors (1).

20100101027 is an equidigital number, since it uses as much as digits as its factorization.

20100101027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28, while the sum is 14.

Adding to 20100101027 its reverse (72010100102), we get a palindrome (92110201129).

The spelling of 20100101027 in words is "twenty billion, one hundred million, one hundred one thousand, twenty-seven".