21133032132 has 24 divisors (see below), whose sum is σ = 51454339776. Its totient is φ = 6738068128.

The previous prime is 21133032127. The next prime is 21133032149. The reversal of 21133032132 is 23123033112.

It is a junction number, because it is equal to n+sod(n) for n = 21133032099 and 21133032108.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38284203 + ... + 38284754.

It is an arithmetic number, because the mean of its divisors is an integer number (2143930824).

Almost surely, 2^21133032132 is an apocalyptic number.

It is an amenable number.

21133032132 is an abundant number, since it is smaller than the sum of its proper divisors (30321307644).

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

21133032132 is a wasteful number, since it uses less digits than its factorization.

21133032132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76568987 (or 76568985 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 21133032132 its reverse (23123033112), we get a palindrome (44256065244).

The spelling of 21133032132 in words is "twenty-one billion, one hundred thirty-three million, thirty-two thousand, one hundred thirty-two".