11021312132 has 24 divisors (see below), whose sum is σ = 20426271936. Its totient is φ = 5192386848.

The previous prime is 11021312123. The next prime is 11021312147. The reversal of 11021312132 is 23121312011.

It is a super-2 number, since 2×11021312132² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11021312132.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 887843 + ... + 900170.

It is an arithmetic number, because the mean of its divisors is an integer number (851094664).

Almost surely, 2^11021312132 is an apocalyptic number.

It is an amenable number.

11021312132 is a deficient number, since it is larger than the sum of its proper divisors (9404959804).

11021312132 is a wasteful number, since it uses less digits than its factorization.

11021312132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1788107 (or 1788105 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11021312132 its reverse (23121312011), we get a palindrome (34142624143).

The spelling of 11021312132 in words is "eleven billion, twenty-one million, three hundred twelve thousand, one hundred thirty-two".