21020333202032 has 20 divisors (see below), whose sum is σ = 40857013465920. Its totient is φ = 10476587791488.

The previous prime is 21020333202023. The next prime is 21020333202059. The reversal of 21020333202032 is 23020233302012.

It is a junction number, because it is equal to n+sod(n) for n = 21020333201989 and 21020333202007.

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, 2098670432 + ... + 2098680447.

It is an arithmetic number, because the mean of its divisors is an integer number (2042850673296).

Almost surely, 2^{21020333202032} is an apocalyptic number.

It is an amenable number.

21020333202032 is a deficient number, since it is larger than the sum of its proper divisors (19836680263888).

21020333202032 is a wasteful number, since it uses less digits than its factorization.

21020333202032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4197351200 (or 4197351194 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 21020333202032 its reverse (23020233302012), we get a palindrome (44040566504044).

The spelling of 21020333202032 in words is "twenty-one trillion, twenty billion, three hundred thirty-three million, two hundred two thousand, thirty-two".