10100110111121 has 2 divisors, whose sum is σ = 10100110111122. Its totient is φ = 10100110111120.

The previous prime is 10100110111103. The next prime is 10100110111123. The reversal of 10100110111121 is 12111101100101.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5983106789521 + 4117003321600 = 2446039^2 + 2029040^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10100110111121 is a prime.

Together with 10100110111123, 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 (10100110111123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5050055055560 + 5050055055561.

It is an arithmetic number, because the mean of its divisors is an integer number (5050055055561).

Almost surely, 2^{10100110111121} is an apocalyptic number.

It is an amenable number.

10100110111121 is a deficient number, since it is larger than the sum of its proper divisors (1).

10100110111121 is an equidigital number, since it uses as much as digits as its factorization.

10100110111121 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 11.

Adding to 10100110111121 its reverse (12111101100101), we get a palindrome (22211211211222).

The spelling of 10100110111121 in words is "ten trillion, one hundred billion, one hundred ten million, one hundred eleven thousand, one hundred twenty-one".