213059043173 has 4 divisors (see below), whose sum is σ = 216239028960. Its totient is φ = 209879057388.

The previous prime is 213059043163. The next prime is 213059043221. The reversal of 213059043173 is 371340950312.

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 213059043173 - 2¹² = 213059039077 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 (213059043163) 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, 1589992793 + ... + 1589992926.

It is an arithmetic number, because the mean of its divisors is an integer number (54059757240).

Almost surely, 2^213059043173 is an apocalyptic number.

It is an amenable number.

213059043173 is a deficient number, since it is larger than the sum of its proper divisors (3179985787).

213059043173 is an equidigital number, since it uses as much as digits as its factorization.

213059043173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3179985786.

The product of its (nonzero) digits is 68040, while the sum is 38.

Adding to 213059043173 its reverse (371340950312), we get a palindrome (584399993485).

The spelling of 213059043173 in words is "two hundred thirteen billion, fifty-nine million, forty-three thousand, one hundred seventy-three".