11123457113 has 2 divisors, whose sum is σ = 11123457114. Its totient is φ = 11123457112.

The previous prime is 11123457091. The next prime is 11123457143. The reversal of 11123457113 is 31175432111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9259635529 + 1863821584 = 96227^2 + 43172^2 .

It is a cyclic number.

It is not a de Polignac number, because 11123457113 - 2²⁴ = 11106679897 is a prime.

It is not a weakly prime, because it can be changed into another prime (11123457143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561728556 + 5561728557.

It is an arithmetic number, because the mean of its divisors is an integer number (5561728557).

Almost surely, 2^11123457113 is an apocalyptic number.

It is an amenable number.

11123457113 is a deficient number, since it is larger than the sum of its proper divisors (1).

11123457113 is an equidigital number, since it uses as much as digits as its factorization.

11123457113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 29.

Adding to 11123457113 its reverse (31175432111), we get a palindrome (42298889224).

The spelling of 11123457113 in words is "eleven billion, one hundred twenty-three million, four hundred fifty-seven thousand, one hundred thirteen".