21133132232032 has 24 divisors (see below), whose sum is σ = 41605957978200. Its totient is φ = 10566539729664.

The previous prime is 21133132231957. The next prime is 21133132232057. The reversal of 21133132232032 is 23023223133112.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21434319 + ... + 22398577.

It is an arithmetic number, because the mean of its divisors is an integer number (1733581582425).

Almost surely, 2^{21133132232032} is an apocalyptic number.

It is an amenable number.

21133132232032 is a deficient number, since it is larger than the sum of its proper divisors (20472825746168).

21133132232032 is an equidigital number, since it uses as much as digits as its factorization.

21133132232032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1649158 (or 1649150 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 21133132232032 its reverse (23023223133112), we get a palindrome (44156355365144).

The spelling of 21133132232032 in words is "twenty-one trillion, one hundred thirty-three billion, one hundred thirty-two million, two hundred thirty-two thousand, thirty-two".