100111121027 has 2 divisors, whose sum is σ = 100111121028. Its totient is φ = 100111121026.

The previous prime is 100111120957. The next prime is 100111121053. The reversal of 100111121027 is 720121111001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100111121027 - 2⁸ = 100111120771 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100111120996 and 100111121014.

It is not a weakly prime, because it can be changed into another prime (100111123027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50055560513 + 50055560514.

It is an arithmetic number, because the mean of its divisors is an integer number (50055560514).

Almost surely, 2^100111121027 is an apocalyptic number.

100111121027 is a deficient number, since it is larger than the sum of its proper divisors (1).

100111121027 is an equidigital number, since it uses as much as digits as its factorization.

100111121027 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 100111121027 its reverse (720121111001), we get a palindrome (820232232028).

The spelling of 100111121027 in words is "one hundred billion, one hundred eleven million, one hundred twenty-one thousand, twenty-seven".