20101001111027 has 2 divisors, whose sum is σ = 20101001111028. Its totient is φ = 20101001111026.

The previous prime is 20101001110919. The next prime is 20101001111033. The reversal of 20101001111027 is 72011110010102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20101001111027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20101001110996 and 20101001111014.

It is not a weakly prime, because it can be changed into another prime (20101001111627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10050500555513 + 10050500555514.

It is an arithmetic number, because the mean of its divisors is an integer number (10050500555514).

Almost surely, 2^{20101001111027} is an apocalyptic number.

20101001111027 is a deficient number, since it is larger than the sum of its proper divisors (1).

20101001111027 is an equidigital number, since it uses as much as digits as its factorization.

20101001111027 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 17.

Adding to 20101001111027 its reverse (72011110010102), we get a palindrome (92112111121129).

The spelling of 20101001111027 in words is "twenty trillion, one hundred one billion, one million, one hundred eleven thousand, twenty-seven".