11123232113 has 12 divisors (see below), whose sum is σ = 12942732132. Its totient is φ = 9531648000.

The previous prime is 11123232067. The next prime is 11123232119. The reversal of 11123232113 is 31123232111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2932439104 + 8190793009 = 54152^2 + 90503^2 .

It is not a de Polignac number, because 11123232113 - 2⁸ = 11123231857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11123232119) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 167681 + ... + 224417.

It is an arithmetic number, because the mean of its divisors is an integer number (1078561011).

Almost surely, 2^11123232113 is an apocalyptic number.

It is an amenable number.

11123232113 is a deficient number, since it is larger than the sum of its proper divisors (1819500019).

11123232113 is an equidigital number, since it uses as much as digits as its factorization.

11123232113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60752 (or 60745 counting only the distinct ones).

The product of its digits is 216, while the sum is 20.

Adding to 11123232113 its reverse (31123232111), we get a palindrome (42246464224).

The spelling of 11123232113 in words is "eleven billion, one hundred twenty-three million, two hundred thirty-two thousand, one hundred thirteen".