203005345213 has 16 divisors (see below), whose sum is σ = 230867707392. Its totient is φ = 176828760000.

The previous prime is 203005345201. The next prime is 203005345297. The reversal of 203005345213 is 312543500302.

It is a cyclic number.

It is not a de Polignac number, because 203005345213 - 2⁹ = 203005344701 is a prime.

It is a super-2 number, since 2×203005345213² (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 (203005345313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2912706 + ... + 2981587.

It is an arithmetic number, because the mean of its divisors is an integer number (14429231712).

Almost surely, 2^203005345213 is an apocalyptic number.

It is an amenable number.

203005345213 is a deficient number, since it is larger than the sum of its proper divisors (27862362179).

203005345213 is a wasteful number, since it uses less digits than its factorization.

203005345213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5894436.

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 203005345213 its reverse (312543500302), we get a palindrome (515548845515).

The spelling of 203005345213 in words is "two hundred three billion, five million, three hundred forty-five thousand, two hundred thirteen".