1111120013 has 2 divisors, whose sum is σ = 1111120014. Its totient is φ = 1111120012.

The previous prime is 1111120009. The next prime is 1111120039. The reversal of 1111120013 is 3100211111.

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., 1108423849 + 2696164 = 33293^2 + 1642^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111120013 - 2² = 1111120009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1111119976 and 1111120003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111120313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555560006 + 555560007.

It is an arithmetic number, because the mean of its divisors is an integer number (555560007).

Almost surely, 2^1111120013 is an apocalyptic number.

It is an amenable number.

1111120013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111120013 is an equidigital number, since it uses as much as digits as its factorization.

1111120013 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1111120013 is about 33333.4668613992. The cubic root of 1111120013 is about 1035.7469346678.

Adding to 1111120013 its reverse (3100211111), we get a palindrome (4211331124).

The spelling of 1111120013 in words is "one billion, one hundred eleven million, one hundred twenty thousand, thirteen".