100121111011 has 2 divisors, whose sum is σ = 100121111012. Its totient is φ = 100121111010.

The previous prime is 100121110993. The next prime is 100121111071. The reversal of 100121111011 is 110111121001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100121111011 - 2⁵ = 100121110979 is a prime.

It is not a weakly prime, because it can be changed into another prime (100121111071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50060555505 + 50060555506.

It is an arithmetic number, because the mean of its divisors is an integer number (50060555506).

Almost surely, 2^100121111011 is an apocalyptic number.

100121111011 is a deficient number, since it is larger than the sum of its proper divisors (1).

100121111011 is an equidigital number, since it uses as much as digits as its factorization.

100121111011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 100121111011 its reverse (110111121001), we get a palindrome (210232232012).

The spelling of 100121111011 in words is "one hundred billion, one hundred twenty-one million, one hundred eleven thousand, eleven".