203013453343 has 16 divisors (see below), whose sum is σ = 221302730880. Its totient is φ = 185592393504.

The previous prime is 203013453311. The next prime is 203013453359. The reversal of 203013453343 is 343354310302.

It is a cyclic number.

It is not a de Polignac number, because 203013453343 - 2⁵ = 203013453311 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 (203013453143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1429096 + ... + 1564717.

It is an arithmetic number, because the mean of its divisors is an integer number (13831420680).

Almost surely, 2^203013453343 is an apocalyptic number.

203013453343 is a deficient number, since it is larger than the sum of its proper divisors (18289277537).

203013453343 is a wasteful number, since it uses less digits than its factorization.

203013453343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2993958.

The product of its (nonzero) digits is 38880, while the sum is 31.

Adding to 203013453343 its reverse (343354310302), we get a palindrome (546367763645).

The spelling of 203013453343 in words is "two hundred three billion, thirteen million, four hundred fifty-three thousand, three hundred forty-three".