21000432133003 has 24 divisors (see below), whose sum is σ = 22845589071360. Its totient is φ = 19250180744400.

The previous prime is 21000432133001. The next prime is 21000432133027. The reversal of 21000432133003 is 30033123400012.

It is not a de Polignac number, because 21000432133003 - 2¹ = 21000432133001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21000432133001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113971918 + ... + 114156028.

It is an arithmetic number, because the mean of its divisors is an integer number (951899544640).

Almost surely, 2^{21000432133003} is an apocalyptic number.

21000432133003 is a deficient number, since it is larger than the sum of its proper divisors (1845156938357).

21000432133003 is a wasteful number, since it uses less digits than its factorization.

21000432133003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190439 (or 190408 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 21000432133003 its reverse (30033123400012), we get a palindrome (51033555533015).

The spelling of 21000432133003 in words is "twenty-one trillion, four hundred thirty-two million, one hundred thirty-three thousand, three".