21020002302232 has 8 divisors (see below), whose sum is σ = 39412504316700. Its totient is φ = 10510001151112.

The previous prime is 21020002302227. The next prime is 21020002302259. The reversal of 21020002302232 is 23220320002012.

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

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, 1313750143882 + ... + 1313750143897.

Almost surely, 2^{21020002302232} is an apocalyptic number.

It is an amenable number.

21020002302232 is a deficient number, since it is larger than the sum of its proper divisors (18392502014468).

21020002302232 is a wasteful number, since it uses less digits than its factorization.

21020002302232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2627500287785 (or 2627500287781 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 21020002302232 its reverse (23220320002012), we get a palindrome (44240322304244).

The spelling of 21020002302232 in words is "twenty-one trillion, twenty billion, two million, three hundred two thousand, two hundred thirty-two".