173271021343 has 4 divisors (see below), whose sum is σ = 198024024400. Its totient is φ = 148518018288.

The previous prime is 173271021337. The next prime is 173271021359. The reversal of 173271021343 is 343120172371.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-173271021343 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 173271021299 and 173271021308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173271021743) 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, 12376501518 + ... + 12376501531.

It is an arithmetic number, because the mean of its divisors is an integer number (49506006100).

Almost surely, 2^173271021343 is an apocalyptic number.

173271021343 is a deficient number, since it is larger than the sum of its proper divisors (24753003057).

173271021343 is an equidigital number, since it uses as much as digits as its factorization.

173271021343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24753003056.

The product of its (nonzero) digits is 21168, while the sum is 34.

The spelling of 173271021343 in words is "one hundred seventy-three billion, two hundred seventy-one million, twenty-one thousand, three hundred forty-three".