20221311011303 has 4 divisors (see below), whose sum is σ = 20523121623480. Its totient is φ = 19919500399128.

The previous prime is 20221311011299. The next prime is 20221311011329. The reversal of 20221311011303 is 30311011312202.

It is a happy number.

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 20221311011303 - 2² = 20221311011299 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 (20221311011333) 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, 150905305988 + ... + 150905306121.

It is an arithmetic number, because the mean of its divisors is an integer number (5130780405870).

Almost surely, 2^{20221311011303} is an apocalyptic number.

20221311011303 is a deficient number, since it is larger than the sum of its proper divisors (301810612177).

20221311011303 is an equidigital number, since it uses as much as digits as its factorization.

20221311011303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301810612176.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 20221311011303 its reverse (30311011312202), we get a palindrome (50532322323505).

The spelling of 20221311011303 in words is "twenty trillion, two hundred twenty-one billion, three hundred eleven million, eleven thousand, three hundred three".