11231132112 has 100 divisors (see below), whose sum is σ = 32544036096. Its totient is φ = 3739348800.

The previous prime is 11231132111. The next prime is 11231132119. The reversal of 11231132112 is 21123113211.

It is a super-2 number, since 2×11231132112² (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 a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231132111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1222737 + ... + 1231887.

Almost surely, 2^11231132112 is an apocalyptic number.

11231132112 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 11231132112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16272018048).

11231132112 is an abundant number, since it is smaller than the sum of its proper divisors (21312903984).

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

11231132112 is an equidigital number, since it uses as much as digits as its factorization.

11231132112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10118 (or 10103 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

Adding to 11231132112 its reverse (21123113211), we get a palindrome (32354245323).

It can be divided in two parts, 1123113211 and 2, that multiplied together give a palindrome (2246226422).

The spelling of 11231132112 in words is "eleven billion, two hundred thirty-one million, one hundred thirty-two thousand, one hundred twelve".