20173273343 has 16 divisors (see below), whose sum is σ = 21895391232. Its totient is φ = 18531084000.

The previous prime is 20173273331. The next prime is 20173273423. The reversal of 20173273343 is 34337237102.

It is a cyclic number.

It is not a de Polignac number, because 20173273343 - 2⁴ = 20173273327 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 (20173273543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14588 + ... + 201393.

It is an arithmetic number, because the mean of its divisors is an integer number (1368461952).

Almost surely, 2^20173273343 is an apocalyptic number.

20173273343 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20173273343 is a deficient number, since it is larger than the sum of its proper divisors (1722117889).

20173273343 is a wasteful number, since it uses less digits than its factorization.

20173273343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216166.

The product of its (nonzero) digits is 63504, while the sum is 35.

The spelling of 20173273343 in words is "twenty billion, one hundred seventy-three million, two hundred seventy-three thousand, three hundred forty-three".