213321244023 has 6 divisors (see below), whose sum is σ = 308130685824. Its totient is φ = 142214162676.

The previous prime is 213321243979. The next prime is 213321244027. The reversal of 213321244023 is 320442123312.

213321244023 is a `hidden beast` number, since 2 + 1 + 3 + 3 + 212 + 440 + 2 + 3 = 666.

It is not a de Polignac number, because 213321244023 - 2¹⁶ = 213321178487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213321244027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11851180215 + ... + 11851180232.

It is an arithmetic number, because the mean of its divisors is an integer number (51355114304).

Almost surely, 2^213321244023 is an apocalyptic number.

213321244023 is a deficient number, since it is larger than the sum of its proper divisors (94809441801).

213321244023 is a wasteful number, since it uses less digits than its factorization.

213321244023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23702360453 (or 23702360450 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 213321244023 its reverse (320442123312), we get a palindrome (533763367335).

The spelling of 213321244023 in words is "two hundred thirteen billion, three hundred twenty-one million, two hundred forty-four thousand, twenty-three".