212053451323 has 4 divisors (see below), whose sum is σ = 242346801520. Its totient is φ = 181760101128.

The previous prime is 212053451299. The next prime is 212053451339. The reversal of 212053451323 is 323154350212.

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 212053451323 - 2²¹ = 212051354171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212053451353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15146675088 + ... + 15146675101.

It is an arithmetic number, because the mean of its divisors is an integer number (60586700380).

Almost surely, 2^212053451323 is an apocalyptic number.

212053451323 is a deficient number, since it is larger than the sum of its proper divisors (30293350197).

212053451323 is an equidigital number, since it uses as much as digits as its factorization.

212053451323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30293350196.

The product of its (nonzero) digits is 21600, while the sum is 31.

The spelling of 212053451323 in words is "two hundred twelve billion, fifty-three million, four hundred fifty-one thousand, three hundred twenty-three".