213570645223 has 16 divisors (see below), whose sum is σ = 230529632256. Its totient is φ = 196687745280.

The previous prime is 213570645209. The next prime is 213570645293. The reversal of 213570645223 is 322546075312.

It is not a de Polignac number, because 213570645223 - 2⁹ = 213570644711 is a prime.

It is a super-2 number, since 2×213570645223² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213570645293) 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 15 ways as a sum of consecutive naturals, for example, 25279386 + ... + 25287832.

It is an arithmetic number, because the mean of its divisors is an integer number (14408102016).

Almost surely, 2^213570645223 is an apocalyptic number.

213570645223 is a deficient number, since it is larger than the sum of its proper divisors (16958987033).

213570645223 is a wasteful number, since it uses less digits than its factorization.

213570645223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12714.

The product of its (nonzero) digits is 302400, while the sum is 40.

The spelling of 213570645223 in words is "two hundred thirteen billion, five hundred seventy million, six hundred forty-five thousand, two hundred twenty-three".