21023032430032 has 10 divisors (see below), whose sum is σ = 40732125333218. Its totient is φ = 10511516215008.

The previous prime is 21023032430009. The next prime is 21023032430051. The reversal of 21023032430032 is 23003423032012.

It can be written as a sum of positive squares in only one way, i.e., 12615027511696 + 8408004918336 = 3551764^2 + 2899656^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21023032429979 and 21023032430006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656969763423 + ... + 656969763454.

Almost surely, 2^{21023032430032} is an apocalyptic number.

It is an amenable number.

21023032430032 is a deficient number, since it is larger than the sum of its proper divisors (19709092903186).

21023032430032 is a wasteful number, since it uses less digits than its factorization.

21023032430032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313939526885 (or 1313939526879 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 21023032430032 its reverse (23003423032012), we get a palindrome (44026455462044).

The spelling of 21023032430032 in words is "twenty-one trillion, twenty-three billion, thirty-two million, four hundred thirty thousand, thirty-two".