203343323222009 has 4 divisors (see below), whose sum is σ = 205142821657716. Its totient is φ = 201543824786304.

The previous prime is 203343323221957. The next prime is 203343323222099. The reversal of 203343323222009 is 900222323343302.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1031957317609 + 202311365904400 = 1015853^2 + 14223620^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203343323222009 is a prime.

It is a super-3 number, since 3×203343323222009³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (203343323222099) 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, 899749217684 + ... + 899749217909.

It is an arithmetic number, because the mean of its divisors is an integer number (51285705414429).

Almost surely, 2^{203343323222009} is an apocalyptic number.

It is an amenable number.

203343323222009 is a deficient number, since it is larger than the sum of its proper divisors (1799498435707).

203343323222009 is a wasteful number, since it uses less digits than its factorization.

203343323222009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1799498435706.

The product of its (nonzero) digits is 279936, while the sum is 38.

The spelling of 203343323222009 in words is "two hundred three trillion, three hundred forty-three billion, three hundred twenty-three million, two hundred twenty-two thousand, nine".