1111043113 has 2 divisors, whose sum is σ = 1111043114. Its totient is φ = 1111043112.

The previous prime is 1111043071. The next prime is 1111043179. The reversal of 1111043113 is 3113401111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 797328169 + 313714944 = 28237^2 + 17712^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111043113 - 2²¹ = 1108945961 is a prime.

It is not a weakly prime, because it can be changed into another prime (1111023113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555521556 + 555521557.

It is an arithmetic number, because the mean of its divisors is an integer number (555521557).

Almost surely, 2^1111043113 is an apocalyptic number.

It is an amenable number.

1111043113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111043113 is an equidigital number, since it uses as much as digits as its factorization.

1111043113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 1111043113 is about 33332.3133460611. The cubic root of 1111043113 is about 1035.7230396261.

Adding to 1111043113 its reverse (3113401111), we get a palindrome (4224444224).

The spelling of 1111043113 in words is "one billion, one hundred eleven million, forty-three thousand, one hundred thirteen".