211320122303 has 4 divisors (see below), whose sum is σ = 213995060640. Its totient is φ = 208645183968.

The previous prime is 211320122291. The next prime is 211320122401. The reversal of 211320122303 is 303221023112.

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 211320122303 - 2⁴ = 211320122287 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 (211320122203) 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, 1337469050 + ... + 1337469207.

It is an arithmetic number, because the mean of its divisors is an integer number (53498765160).

Almost surely, 2^211320122303 is an apocalyptic number.

211320122303 is a deficient number, since it is larger than the sum of its proper divisors (2674938337).

211320122303 is an equidigital number, since it uses as much as digits as its factorization.

211320122303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2674938336.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 211320122303 its reverse (303221023112), we get a palindrome (514541145415).

The spelling of 211320122303 in words is "two hundred eleven billion, three hundred twenty million, one hundred twenty-two thousand, three hundred three".