11001000100121 has 2 divisors, whose sum is σ = 11001000100122. Its totient is φ = 11001000100120.

The previous prime is 11001000100091. The next prime is 11001000100151. The reversal of 11001000100121 is 12100100010011.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (11001000100091) and next prime (11001000100151).

It can be written as a sum of positive squares in only one way, i.e., 10986307993600 + 14692106521 = 3314560^2 + 121211^2 .

It is a cyclic number.

It is not a de Polignac number, because 11001000100121 - 2¹⁰ = 11001000099097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11001000100099 and 11001000100108.

It is not a weakly prime, because it can be changed into another prime (11001000100151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500500050060 + 5500500050061.

It is an arithmetic number, because the mean of its divisors is an integer number (5500500050061).

Almost surely, 2^{11001000100121} is an apocalyptic number.

It is an amenable number.

11001000100121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11001000100121 is an equidigital number, since it uses as much as digits as its factorization.

11001000100121 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 8.

Adding to 11001000100121 its reverse (12100100010011), we get a palindrome (23101100110132).

The spelling of 11001000100121 in words is "eleven trillion, one billion, one hundred thousand, one hundred twenty-one".