20030132210021 has 4 divisors (see below), whose sum is σ = 20062491067200. Its totient is φ = 19997773352844.

The previous prime is 20030132209963. The next prime is 20030132210027. The reversal of 20030132210021 is 12001223103002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20030132210021 - 2⁶ = 20030132209957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20030132210027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16179427661 + ... + 16179428898.

It is an arithmetic number, because the mean of its divisors is an integer number (5015622766800).

Almost surely, 2^{20030132210021} is an apocalyptic number.

It is an amenable number.

20030132210021 is a deficient number, since it is larger than the sum of its proper divisors (32358857179).

20030132210021 is an equidigital number, since it uses as much as digits as its factorization.

20030132210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32358857178.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20030132210021 its reverse (12001223103002), we get a palindrome (32031355313023).

The spelling of 20030132210021 in words is "twenty trillion, thirty billion, one hundred thirty-two million, two hundred ten thousand, twenty-one".