21033113132 has 12 divisors (see below), whose sum is σ = 36836512440. Its totient is φ = 10508395296.

The previous prime is 21033113131. The next prime is 21033113147. The reversal of 21033113132 is 23131133012.

It is a super-3 number, since 3×21033113132³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (21033113131) 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, 2034518 + ... + 2044829.

It is an arithmetic number, because the mean of its divisors is an integer number (3069709370).

Almost surely, 2^21033113132 is an apocalyptic number.

It is an amenable number.

21033113132 is a deficient number, since it is larger than the sum of its proper divisors (15803399308).

21033113132 is a wasteful number, since it uses less digits than its factorization.

21033113132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4080640 (or 4080638 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 21033113132 its reverse (23131133012), we get a palindrome (44164246144).

The spelling of 21033113132 in words is "twenty-one billion, thirty-three million, one hundred thirteen thousand, one hundred thirty-two".