212303120323 has 4 divisors (see below), whose sum is σ = 242632137520. Its totient is φ = 181974103128.

The previous prime is 212303120321. The next prime is 212303120339. The reversal of 212303120323 is 323021303212.

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 212303120323 - 2¹ = 212303120321 is a prime.

It is a super-2 number, since 2×212303120323² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212303120294 and 212303120303.

It is not an unprimeable number, because it can be changed into a prime (212303120321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15164508588 + ... + 15164508601.

It is an arithmetic number, because the mean of its divisors is an integer number (60658034380).

Almost surely, 2^212303120323 is an apocalyptic number.

212303120323 is a deficient number, since it is larger than the sum of its proper divisors (30329017197).

212303120323 is an equidigital number, since it uses as much as digits as its factorization.

212303120323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30329017196.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 212303120323 its reverse (323021303212), we get a palindrome (535324423535).

The spelling of 212303120323 in words is "two hundred twelve billion, three hundred three million, one hundred twenty thousand, three hundred twenty-three".