203322013013 has 12 divisors (see below), whose sum is σ = 244673219340. Its totient is φ = 168266492352.

The previous prime is 203322012991. The next prime is 203322013043. The reversal of 203322013013 is 310310223302.

It can be written as a sum of positive squares in 2 ways, for example, as 45063647524 + 158258365489 = 212282^2 + 397817^2 .

It is not a de Polignac number, because 203322013013 - 2²² = 203317818709 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 (203322013043) 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, 71540456 + ... + 71543297.

It is an arithmetic number, because the mean of its divisors is an integer number (20389434945).

Almost surely, 2^203322013013 is an apocalyptic number.

It is an amenable number.

203322013013 is a deficient number, since it is larger than the sum of its proper divisors (41351206327).

203322013013 is a wasteful number, since it uses less digits than its factorization.

203322013013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143083796 (or 143083789 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 203322013013 its reverse (310310223302), we get a palindrome (513632236315).

The spelling of 203322013013 in words is "two hundred three billion, three hundred twenty-two million, thirteen thousand, thirteen".