21100001132 has 36 divisors (see below), whose sum is σ = 43106545944. Its totient is φ = 9010653120.

The previous prime is 21100001081. The next prime is 21100001171. The reversal of 21100001132 is 23110000112.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 136478 + ... + 246629.

It is an arithmetic number, because the mean of its divisors is an integer number (1197404054).

Almost surely, 2^21100001132 is an apocalyptic number.

It is an amenable number.

21100001132 is an abundant number, since it is smaller than the sum of its proper divisors (22006544812).

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

21100001132 is a wasteful number, since it uses less digits than its factorization.

21100001132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383406 (or 383397 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 21100001132 its reverse (23110000112), we get a palindrome (44210001244).

The spelling of 21100001132 in words is "twenty-one billion, one hundred million, one thousand, one hundred thirty-two".