12111302232 has 96 divisors (see below), whose sum is σ = 33383029680. Its totient is φ = 3966071040.

The previous prime is 12111302209. The next prime is 12111302233. The reversal of 12111302232 is 23220311121.

12111302232 is a `hidden beast` number, since 121 + 11 + 302 + 232 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12111302233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1076058 + ... + 1087254.

Almost surely, 2^12111302232 is an apocalyptic number.

12111302232 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 12111302232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16691514840).

12111302232 is an abundant number, since it is smaller than the sum of its proper divisors (21271727448).

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

12111302232 is a wasteful number, since it uses less digits than its factorization.

12111302232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11473 (or 11466 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12111302232 its reverse (23220311121), we get a palindrome (35331613353).

The spelling of 12111302232 in words is "twelve billion, one hundred eleven million, three hundred two thousand, two hundred thirty-two".