212021031323 has 4 divisors (see below), whose sum is σ = 212038495200. Its totient is φ = 212003567448.

The previous prime is 212021031241. The next prime is 212021031359. The reversal of 212021031323 is 323130120212.

212021031323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 212021031323 - 2¹⁶ = 212020965787 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212021031295 and 212021031304.

It is not an unprimeable number, because it can be changed into a prime (212021031223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8713715 + ... + 8738012.

It is an arithmetic number, because the mean of its divisors is an integer number (53009623800).

Almost surely, 2^212021031323 is an apocalyptic number.

212021031323 is a deficient number, since it is larger than the sum of its proper divisors (17463877).

212021031323 is a wasteful number, since it uses less digits than its factorization.

212021031323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17463876.

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

Adding to 212021031323 its reverse (323130120212), we get a palindrome (535151151535).

The spelling of 212021031323 in words is "two hundred twelve billion, twenty-one million, thirty-one thousand, three hundred twenty-three".