203321123202213 has 12 divisors (see below), whose sum is σ = 293700634148428. Its totient is φ = 135540692098560.

The previous prime is 203321123202209. The next prime is 203321123202293. The reversal of 203321123202213 is 312202321123302.

203321123202213 is a `hidden beast` number, since 2 + 0 + 3 + 3 + 2 + 112 + 320 + 221 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 183144200154084 + 20176923048129 = 13533078^2 + 4491873^2 .

It is not a de Polignac number, because 203321123202213 - 2² = 203321123202209 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 (203321123202203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 560089270 + ... + 560452167.

Almost surely, 2^{203321123202213} is an apocalyptic number.

It is an amenable number.

203321123202213 is a deficient number, since it is larger than the sum of its proper divisors (90379510946215).

203321123202213 is a wasteful number, since it uses less digits than its factorization.

203321123202213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120561604 (or 1120561601 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 203321123202213 its reverse (312202321123302), we get a palindrome (515523444325515).

The spelling of 203321123202213 in words is "two hundred three trillion, three hundred twenty-one billion, one hundred twenty-three million, two hundred two thousand, two hundred thirteen".