121110113 has 2 divisors, whose sum is σ = 121110114. Its totient is φ = 121110112.

The previous prime is 121110109. The next prime is 121110127. The reversal of 121110113 is 311011121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87086224 + 34023889 = 9332^2 + 5833^2 .

It is an emirp because it is prime and its reverse (311011121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121110113 - 2² = 121110109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121110094 and 121110103.

It is not a weakly prime, because it can be changed into another prime (121110163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60555056 + 60555057.

It is an arithmetic number, because the mean of its divisors is an integer number (60555057).

Almost surely, 2^121110113 is an apocalyptic number.

It is an amenable number.

121110113 is a deficient number, since it is larger than the sum of its proper divisors (1).

121110113 is an equidigital number, since it uses as much as digits as its factorization.

121110113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 121110113 is about 11005.0039981819. The cubic root of 121110113 is about 494.7587342427.

Adding to 121110113 its reverse (311011121), we get a palindrome (432121234).

The spelling of 121110113 in words is "one hundred twenty-one million, one hundred ten thousand, one hundred thirteen".