11123111313 has 6 divisors (see below), whose sum is σ = 16066716354. Its totient is φ = 7415407536.

The previous prime is 11123111303. The next prime is 11123111341. The reversal of 11123111313 is 31311132111.

11123111313 is a `hidden beast` number, since 111 + 231 + 11 + 313 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10206656784 + 916454529 = 101028^2 + 30273^2 .

It is not a de Polignac number, because 11123111313 - 2⁵ = 11123111281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11123111303) 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 in 5 ways as a sum of consecutive naturals, for example, 617950620 + ... + 617950637.

It is an arithmetic number, because the mean of its divisors is an integer number (2677786059).

Almost surely, 2^11123111313 is an apocalyptic number.

It is an amenable number.

11123111313 is a deficient number, since it is larger than the sum of its proper divisors (4943605041).

11123111313 is a wasteful number, since it uses less digits than its factorization.

11123111313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235901263 (or 1235901260 counting only the distinct ones).

The product of its digits is 54, while the sum is 18.

Adding to 11123111313 its reverse (31311132111), we get a palindrome (42434243424).

The spelling of 11123111313 in words is "eleven billion, one hundred twenty-three million, one hundred eleven thousand, three hundred thirteen".