11123120013 has 16 divisors (see below), whose sum is σ = 15363373056. Its totient is φ = 7150831920.

The previous prime is 11123119961. The next prime is 11123120059. The reversal of 11123120013 is 31002132111.

It is a happy number.

It is not a de Polignac number, because 11123120013 - 2⁸ = 11123119757 is a prime.

It is a super-2 number, since 2×11123120013² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11123119974 and 11123120001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123120713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184995 + ... + 237632.

It is an arithmetic number, because the mean of its divisors is an integer number (960210816).

Almost surely, 2^11123120013 is an apocalyptic number.

It is an amenable number.

11123120013 is a deficient number, since it is larger than the sum of its proper divisors (4240253043).

11123120013 is a wasteful number, since it uses less digits than its factorization.

11123120013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422944.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 11123120013 its reverse (31002132111), we get a palindrome (42125252124).

The spelling of 11123120013 in words is "eleven billion, one hundred twenty-three million, one hundred twenty thousand, thirteen".