243132203409 has 8 divisors (see below), whose sum is σ = 324240472032. Its totient is φ = 162056035200.

The previous prime is 243132203371. The next prime is 243132203411. The reversal of 243132203409 is 904302231342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 243132203409 - 2²¹ = 243130106257 is a prime.

It is a super-2 number, since 2×243132203409² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 243132203409.

It is not an unprimeable number, because it can be changed into a prime (243132203009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8007424 + ... + 8037729.

It is an arithmetic number, because the mean of its divisors is an integer number (40530059004).

Almost surely, 2^243132203409 is an apocalyptic number.

It is an amenable number.

243132203409 is a deficient number, since it is larger than the sum of its proper divisors (81108268623).

243132203409 is a wasteful number, since it uses less digits than its factorization.

243132203409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16050207.

The product of its (nonzero) digits is 31104, while the sum is 33.

The spelling of 243132203409 in words is "two hundred forty-three billion, one hundred thirty-two million, two hundred three thousand, four hundred nine".