203040344330 has 8 divisors (see below), whose sum is σ = 365472619812. Its totient is φ = 81216137728.

The previous prime is 203040344323. The next prime is 203040344387. The reversal of 203040344330 is 33443040302.

It can be written as a sum of positive squares in 2 ways, for example, as 197758979401 + 5281364929 = 444701^2 + 72673^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 203040344330.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10152017207 + ... + 10152017226.

Almost surely, 2^203040344330 is an apocalyptic number.

203040344330 is a deficient number, since it is larger than the sum of its proper divisors (162432275482).

203040344330 is a wasteful number, since it uses less digits than its factorization.

203040344330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20304034440.

The product of its (nonzero) digits is 10368, while the sum is 26.

Adding to 203040344330 its reverse (33443040302), we get a palindrome (236483384632).

The spelling of 203040344330 in words is "two hundred three billion, forty million, three hundred forty-four thousand, three hundred thirty".