203030312013 has 12 divisors (see below), whose sum is σ = 293275090368. Its totient is φ = 135349348680.

The previous prime is 203030311943. The next prime is 203030312041. The reversal of 203030312013 is 310213030302.

203030312013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 203030312013 - 2¹³ = 203030303821 is a prime.

It is a super-2 number, since 2×203030312013² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203030312063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27045 + ... + 637802.

It is an arithmetic number, because the mean of its divisors is an integer number (24439590864).

Almost surely, 2^203030312013 is an apocalyptic number.

It is an amenable number.

203030312013 is a deficient number, since it is larger than the sum of its proper divisors (90244778355).

203030312013 is a wasteful number, since it uses less digits than its factorization.

203030312013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698784 (or 698781 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 203030312013 its reverse (310213030302), we get a palindrome (513243342315).

The spelling of 203030312013 in words is "two hundred three billion, thirty million, three hundred twelve thousand, thirteen".