243353129171 has 16 divisors (see below), whose sum is σ = 257216087040. Its totient is φ = 229873260960.

The previous prime is 243353129153. The next prime is 243353129179. The reversal of 243353129171 is 171921353342.

It is a cyclic number.

It is not a de Polignac number, because 243353129171 - 2¹⁴ = 243353112787 is a prime.

It is a super-2 number, since 2×243353129171² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243353129179) 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, 1970225 + ... + 2090093.

It is an arithmetic number, because the mean of its divisors is an integer number (16076005440).

Almost surely, 2^243353129171 is an apocalyptic number.

243353129171 is a deficient number, since it is larger than the sum of its proper divisors (13862957869).

243353129171 is a wasteful number, since it uses less digits than its factorization.

243353129171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121466.

The product of its digits is 136080, while the sum is 41.

The spelling of 243353129171 in words is "two hundred forty-three billion, three hundred fifty-three million, one hundred twenty-nine thousand, one hundred seventy-one".