11103113232 has 140 divisors (see below), whose sum is σ = 32330480940. Its totient is φ = 3692231424.

The previous prime is 11103113221. The next prime is 11103113237. The reversal of 11103113232 is 23231130111.

It can be written as a sum of positive squares in 2 ways, for example, as 1486565136 + 9616548096 = 38556^2 + 98064^2 .

It is a super-2 number, since 2×11103113232² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (11103113237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 6495994 + ... + 6497702.

Almost surely, 2^11103113232 is an apocalyptic number.

11103113232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11103113232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16165240470).

11103113232 is an abundant number, since it is smaller than the sum of its proper divisors (21227367708).

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

11103113232 is an equidigital number, since it uses as much as digits as its factorization.

11103113232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2292 (or 2271 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 11103113232 its reverse (23231130111), we get a palindrome (34334243343).

The spelling of 11103113232 in words is "eleven billion, one hundred three million, one hundred thirteen thousand, two hundred thirty-two".