1111210121113 has 2 divisors, whose sum is σ = 1111210121114. Its totient is φ = 1111210121112.

The previous prime is 1111210121093. The next prime is 1111210121171. The reversal of 1111210121113 is 3111210121111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1072295457289 + 38914663824 = 1035517^2 + 197268^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111210121113 - 2²⁵ = 1111176566681 is a prime.

It is not a weakly prime, because it can be changed into another prime (1111210127113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555605060556 + 555605060557.

It is an arithmetic number, because the mean of its divisors is an integer number (555605060557).

Almost surely, 2^{1111210121113} is an apocalyptic number.

It is an amenable number.

1111210121113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111210121113 is an equidigital number, since it uses as much as digits as its factorization.

1111210121113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 16.

Adding to 1111210121113 its reverse (3111210121111), we get a palindrome (4222420242224).

The spelling of 1111210121113 in words is "one trillion, one hundred eleven billion, two hundred ten million, one hundred twenty-one thousand, one hundred thirteen".