203818349223 has 32 divisors (see below), whose sum is σ = 303422873600. Its totient is φ = 135218792448.

The previous prime is 203818349197. The next prime is 203818349227. The reversal of 203818349223 is 322943818302.

203818349223 is a `hidden beast` number, since 2 + 0 + 3 + 81 + 8 + 349 + 223 = 666.

It is not a de Polignac number, because 203818349223 - 2⁶ = 203818349159 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 (203818349227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5858586 + ... + 5893272.

It is an arithmetic number, because the mean of its divisors is an integer number (9481964800).

Almost surely, 2^203818349223 is an apocalyptic number.

203818349223 is a deficient number, since it is larger than the sum of its proper divisors (99604524377).

203818349223 is a wasteful number, since it uses less digits than its factorization.

203818349223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35748 (or 35742 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The spelling of 203818349223 in words is "two hundred three billion, eight hundred eighteen million, three hundred forty-nine thousand, two hundred twenty-three".