213331021323 has 16 divisors (see below), whose sum is σ = 333861676800. Its totient is φ = 118608752736.

The previous prime is 213331021313. The next prime is 213331021333. The reversal of 213331021323 is 323120133312.

It is an interprime number because it is at equal distance from previous prime (213331021313) and next prime (213331021333).

It is not a de Polignac number, because 213331021323 - 2⁶ = 213331021259 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213331021293 and 213331021302.

It is not an unprimeable number, because it can be changed into a prime (213331021313) 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 15 ways as a sum of consecutive naturals, for example, 137277873 + ... + 137279426.

It is an arithmetic number, because the mean of its divisors is an integer number (20866354800).

Almost surely, 2^213331021323 is an apocalyptic number.

213331021323 is a deficient number, since it is larger than the sum of its proper divisors (120530655477).

213331021323 is a wasteful number, since it uses less digits than its factorization.

213331021323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274557346.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 213331021323 its reverse (323120133312), we get a palindrome (536451154635).

The spelling of 213331021323 in words is "two hundred thirteen billion, three hundred thirty-one million, twenty-one thousand, three hundred twenty-three".