20303101111211 has 4 divisors (see below), whose sum is σ = 20324540500872. Its totient is φ = 20281661721552.

The previous prime is 20303101111199. The next prime is 20303101111219. The reversal of 20303101111211 is 11211110130302.

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 20303101111211 - 2⁶ = 20303101111147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20303101111211.

It is not an unprimeable number, because it can be changed into a prime (20303101111219) 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, 10719693410 + ... + 10719695303.

It is an arithmetic number, because the mean of its divisors is an integer number (5081135125218).

Almost surely, 2^{20303101111211} is an apocalyptic number.

20303101111211 is a deficient number, since it is larger than the sum of its proper divisors (21439389661).

20303101111211 is an equidigital number, since it uses as much as digits as its factorization.

20303101111211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21439389660.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 20303101111211 its reverse (11211110130302), we get a palindrome (31514211241513).

The spelling of 20303101111211 in words is "twenty trillion, three hundred three billion, one hundred one million, one hundred eleven thousand, two hundred eleven".