20010221132003 has 4 divisors (see below), whose sum is σ = 20014044989928. Its totient is φ = 20006397274080.

The previous prime is 20010221131969. The next prime is 20010221132063. The reversal of 20010221132003 is 30023112201002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20010221132003 - 2²⁴ = 20010204354787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20010221132063) 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, 1911921113 + ... + 1911931578.

It is an arithmetic number, because the mean of its divisors is an integer number (5003511247482).

Almost surely, 2^{20010221132003} is an apocalyptic number.

20010221132003 is a deficient number, since it is larger than the sum of its proper divisors (3823857925).

20010221132003 is an equidigital number, since it uses as much as digits as its factorization.

20010221132003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3823857924.

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

Adding to 20010221132003 its reverse (30023112201002), we get a palindrome (50033333333005).

The spelling of 20010221132003 in words is "twenty trillion, ten billion, two hundred twenty-one million, one hundred thirty-two thousand, three".