11321212132 has 24 divisors (see below), whose sum is σ = 20101919040. Its totient is φ = 5577892320.

The previous prime is 11321212127. The next prime is 11321212139. The reversal of 11321212132 is 23121212311.

It is not an unprimeable number, because it can be changed into a prime (11321212139) 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 7 ways as a sum of consecutive naturals, for example, 577963 + ... + 597229.

It is an arithmetic number, because the mean of its divisors is an integer number (837579960).

Almost surely, 2^11321212132 is an apocalyptic number.

It is an amenable number.

11321212132 is a deficient number, since it is larger than the sum of its proper divisors (8780706908).

11321212132 is a wasteful number, since it uses less digits than its factorization.

11321212132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21411 (or 21409 counting only the distinct ones).

The product of its digits is 144, while the sum is 19.

Adding to 11321212132 its reverse (23121212311), we get a palindrome (34442424443).

The spelling of 11321212132 in words is "eleven billion, three hundred twenty-one million, two hundred twelve thousand, one hundred thirty-two".