11112103312 has 20 divisors (see below), whose sum is σ = 22796153676. Its totient is φ = 5229224960.

The previous prime is 11112103309. The next prime is 11112103313. The reversal of 11112103312 is 21330121111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9642454416 + 1469648896 = 98196^2 + 38336^2 .

It is a super-2 number, since 2×11112103312² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (11112103313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20426389 + ... + 20426932.

Almost surely, 2^11112103312 is an apocalyptic number.

It is an amenable number.

11112103312 is an abundant number, since it is smaller than the sum of its proper divisors (11684050364).

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

11112103312 is a wasteful number, since it uses less digits than its factorization.

11112103312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40853346 (or 40853340 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 11112103312 its reverse (21330121111), we get a palindrome (32442224423).

The spelling of 11112103312 in words is "eleven billion, one hundred twelve million, one hundred three thousand, three hundred twelve".