203323320013 has 8 divisors (see below), whose sum is σ = 221815542816. Its totient is φ = 184832478000.

The previous prime is 203323319999. The next prime is 203323320023. The reversal of 203323320013 is 310023323302.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203323320013 is a prime.

It is a super-2 number, since 2×203323320013² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203323320023) 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, 24331 + ... + 638152.

It is an arithmetic number, because the mean of its divisors is an integer number (27726942852).

Almost surely, 2^203323320013 is an apocalyptic number.

It is an amenable number.

203323320013 is a deficient number, since it is larger than the sum of its proper divisors (18492222803).

203323320013 is a wasteful number, since it uses less digits than its factorization.

203323320013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690395.

The product of its (nonzero) digits is 1944, while the sum is 22.

Adding to 203323320013 its reverse (310023323302), we get a palindrome (513346643315).

The spelling of 203323320013 in words is "two hundred three billion, three hundred twenty-three million, three hundred twenty thousand, thirteen".