100111012011091 has 2 divisors, whose sum is σ = 100111012011092. Its totient is φ = 100111012011090.

The previous prime is 100111012011047. The next prime is 100111012011203. The reversal of 100111012011091 is 190110210111001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100111012011091 - 2¹³ = 100111012002899 is a prime.

It is not a weakly prime, because it can be changed into another prime (100111012051091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50055506005545 + 50055506005546.

It is an arithmetic number, because the mean of its divisors is an integer number (50055506005546).

Almost surely, 2^{100111012011091} is an apocalyptic number.

100111012011091 is a deficient number, since it is larger than the sum of its proper divisors (1).

100111012011091 is an equidigital number, since it uses as much as digits as its factorization.

100111012011091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 19.

Adding to 100111012011091 its reverse (190110210111001), we get a palindrome (290221222122092).

The spelling of 100111012011091 in words is "one hundred trillion, one hundred eleven billion, twelve million, eleven thousand, ninety-one".