11321312132 has 24 divisors (see below), whose sum is σ = 21340044096. Its totient is φ = 5224308768.

The previous prime is 11321312113. The next prime is 11321312137. The reversal of 11321312132 is 23121312311.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11321312137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349913 + ... + 380895.

It is an arithmetic number, because the mean of its divisors is an integer number (889168504).

Almost surely, 2^11321312132 is an apocalyptic number.

It is an amenable number.

11321312132 is a deficient number, since it is larger than the sum of its proper divisors (10018731964).

11321312132 is a wasteful number, since it uses less digits than its factorization.

11321312132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38027 (or 38025 counting only the distinct ones).

The product of its digits is 216, while the sum is 20.

Adding to 11321312132 its reverse (23121312311), we get a palindrome (34442624443).

The spelling of 11321312132 in words is "eleven billion, three hundred twenty-one million, three hundred twelve thousand, one hundred thirty-two".