211313021323 has 4 divisors (see below), whose sum is σ = 212534484048. Its totient is φ = 210091558600.

The previous prime is 211313021317. The next prime is 211313021333. The reversal of 211313021323 is 323120313112.

211313021323 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 211313021323 - 2⁹ = 211313020811 is a prime.

It is a super-3 number, since 3×211313021323³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211313021294 and 211313021303.

It is not an unprimeable number, because it can be changed into a prime (211313021333) 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, 610731103 + ... + 610731448.

It is an arithmetic number, because the mean of its divisors is an integer number (53133621012).

Almost surely, 2^211313021323 is an apocalyptic number.

211313021323 is a deficient number, since it is larger than the sum of its proper divisors (1221462725).

211313021323 is a wasteful number, since it uses less digits than its factorization.

211313021323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221462724.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 211313021323 its reverse (323120313112), we get a palindrome (534433334435).

The spelling of 211313021323 in words is "two hundred eleven billion, three hundred thirteen million, twenty-one thousand, three hundred twenty-three".