21203130003032 has 8 divisors (see below), whose sum is σ = 39755868755700. Its totient is φ = 10601565001512.

The previous prime is 21203130003007. The next prime is 21203130003061. The reversal of 21203130003032 is 23030003130212.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 21203130002995 and 21203130003013.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1325195625182 + ... + 1325195625197.

Almost surely, 2^{21203130003032} is an apocalyptic number.

It is an amenable number.

21203130003032 is a deficient number, since it is larger than the sum of its proper divisors (18552738752668).

21203130003032 is a wasteful number, since it uses less digits than its factorization.

21203130003032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2650391250385 (or 2650391250381 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 21203130003032 its reverse (23030003130212), we get a palindrome (44233133133244).

The spelling of 21203130003032 in words is "twenty-one trillion, two hundred three billion, one hundred thirty million, three thousand, thirty-two".