111513441121 has 2 divisors, whose sum is σ = 111513441122. Its totient is φ = 111513441120.

The previous prime is 111513441097. The next prime is 111513441217. The reversal of 111513441121 is 121144315111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107148856896 + 4364584225 = 327336^2 + 66065^2 .

It is a cyclic number.

It is not a de Polignac number, because 111513441121 - 2⁹ = 111513440609 is a prime.

It is not a weakly prime, because it can be changed into another prime (111513448121) 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, 55756720560 + 55756720561.

It is an arithmetic number, because the mean of its divisors is an integer number (55756720561).

Almost surely, 2^111513441121 is an apocalyptic number.

It is an amenable number.

111513441121 is a deficient number, since it is larger than the sum of its proper divisors (1).

111513441121 is an equidigital number, since it uses as much as digits as its factorization.

111513441121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 480, while the sum is 25.

Adding to 111513441121 its reverse (121144315111), we get a palindrome (232657756232).

The spelling of 111513441121 in words is "one hundred eleven billion, five hundred thirteen million, four hundred forty-one thousand, one hundred twenty-one".