20001101222303 has 4 divisors (see below), whose sum is σ = 20004635615880. Its totient is φ = 19997566828728.

The previous prime is 20001101222261. The next prime is 20001101222317. The reversal of 20001101222303 is 30322210110002.

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 20001101222303 - 2⁶ = 20001101222239 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 (20001101222203) 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, 1767188300 + ... + 1767199617.

It is an arithmetic number, because the mean of its divisors is an integer number (5001158903970).

Almost surely, 2^{20001101222303} is an apocalyptic number.

20001101222303 is a deficient number, since it is larger than the sum of its proper divisors (3534393577).

20001101222303 is an equidigital number, since it uses as much as digits as its factorization.

20001101222303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3534393576.

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

Adding to 20001101222303 its reverse (30322210110002), we get a palindrome (50323311332305).

The spelling of 20001101222303 in words is "twenty trillion, one billion, one hundred one million, two hundred twenty-two thousand, three hundred three".