11551342332 has 12 divisors (see below), whose sum is σ = 26953132136. Its totient is φ = 3850447440.

The previous prime is 11551342331. The next prime is 11551342339. The reversal of 11551342332 is 23324315511.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 11551342332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11551342331) 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 3 ways as a sum of consecutive naturals, for example, 481305919 + ... + 481305942.

Almost surely, 2^11551342332 is an apocalyptic number.

11551342332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11551342332 is an abundant number, since it is smaller than the sum of its proper divisors (15401789804).

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

11551342332 is a wasteful number, since it uses less digits than its factorization.

11551342332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962611868 (or 962611866 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

Adding to 11551342332 its reverse (23324315511), we get a palindrome (34875657843).

The spelling of 11551342332 in words is "eleven billion, five hundred fifty-one million, three hundred forty-two thousand, three hundred thirty-two".