1115012113 has 2 divisors, whose sum is σ = 1115012114. Its totient is φ = 1115012112.

The previous prime is 1115012089. The next prime is 1115012117. The reversal of 1115012113 is 3112105111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 619860609 + 495151504 = 24897^2 + 22252^2 .

It is an emirp because it is prime and its reverse (3112105111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1115012113 is a prime.

It is not a weakly prime, because it can be changed into another prime (1115012117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557506056 + 557506057.

It is an arithmetic number, because the mean of its divisors is an integer number (557506057).

Almost surely, 2^1115012113 is an apocalyptic number.

It is an amenable number.

1115012113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115012113 is an equidigital number, since it uses as much as digits as its factorization.

1115012113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30, while the sum is 16.

The square root of 1115012113 is about 33391.7970915014. The cubic root of 1115012113 is about 1036.9548848405.

Adding to 1115012113 its reverse (3112105111), we get a palindrome (4227117224).

The spelling of 1115012113 in words is "one billion, one hundred fifteen million, twelve thousand, one hundred thirteen".