212320310303 has 4 divisors (see below), whose sum is σ = 212537629920. Its totient is φ = 212102990688.

The previous prime is 212320310291. The next prime is 212320310327. The reversal of 212320310303 is 303013023212.

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 212320310303 - 2⁶ = 212320310239 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 (212320310353) 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, 108658343 + ... + 108660296.

It is an arithmetic number, because the mean of its divisors is an integer number (53134407480).

Almost surely, 2^212320310303 is an apocalyptic number.

212320310303 is a deficient number, since it is larger than the sum of its proper divisors (217319617).

212320310303 is an equidigital number, since it uses as much as digits as its factorization.

212320310303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217319616.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 212320310303 its reverse (303013023212), we get a palindrome (515333333515).

The spelling of 212320310303 in words is "two hundred twelve billion, three hundred twenty million, three hundred ten thousand, three hundred three".