213523367573 has 4 divisors (see below), whose sum is σ = 218489027328. Its totient is φ = 208557707820.

The previous prime is 213523367543. The next prime is 213523367591. The reversal of 213523367573 is 375763325312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 213523367573 - 2¹⁴ = 213523351189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213523367543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2482829813 + ... + 2482829898.

It is an arithmetic number, because the mean of its divisors is an integer number (54622256832).

Almost surely, 2^213523367573 is an apocalyptic number.

It is an amenable number.

213523367573 is a deficient number, since it is larger than the sum of its proper divisors (4965659755).

213523367573 is an equidigital number, since it uses as much as digits as its factorization.

213523367573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4965659754.

The product of its digits is 2381400, while the sum is 47.

The spelling of 213523367573 in words is "two hundred thirteen billion, five hundred twenty-three million, three hundred sixty-seven thousand, five hundred seventy-three".