203354055403 has 16 divisors (see below), whose sum is σ = 225243504000. Its totient is φ = 182715968512.

The previous prime is 203354055391. The next prime is 203354055413. The reversal of 203354055403 is 304550453302.

It is a cyclic number.

It is not a de Polignac number, because 203354055403 - 2²⁹ = 202817184491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203354055413) 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, 2273443 + ... + 2361196.

It is an arithmetic number, because the mean of its divisors is an integer number (14077719000).

Almost surely, 2^203354055403 is an apocalyptic number.

203354055403 is a deficient number, since it is larger than the sum of its proper divisors (21889448597).

203354055403 is a wasteful number, since it uses less digits than its factorization.

203354055403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4634774.

The product of its (nonzero) digits is 108000, while the sum is 34.

The spelling of 203354055403 in words is "two hundred three billion, three hundred fifty-four million, fifty-five thousand, four hundred three".