11123313112 has 32 divisors (see below), whose sum is σ = 22795413120. Its totient is φ = 5065643520.

The previous prime is 11123313083. The next prime is 11123313121. The reversal of 11123313112 is 21131332111.

It is a super-2 number, since 2×11123313112² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11123313112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1314963 + ... + 1323394.

It is an arithmetic number, because the mean of its divisors is an integer number (712356660).

Almost surely, 2^11123313112 is an apocalyptic number.

It is an amenable number.

11123313112 is an abundant number, since it is smaller than the sum of its proper divisors (11672100008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11123313112 is a wasteful number, since it uses less digits than its factorization.

11123313112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2638411 (or 2638407 counting only the distinct ones).

The product of its digits is 108, while the sum is 19.

Adding to 11123313112 its reverse (21131332111), we get a palindrome (32254645223).

The spelling of 11123313112 in words is "eleven billion, one hundred twenty-three million, three hundred thirteen thousand, one hundred twelve".