203831700123 has 16 divisors (see below), whose sum is σ = 295307955200. Its totient is φ = 124583041440.

The previous prime is 203831700097. The next prime is 203831700133. The reversal of 203831700123 is 321007138302.

It is not a de Polignac number, because 203831700123 - 2²⁰ = 203830651547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203831700133) 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, 57675568 + ... + 57679101.

It is an arithmetic number, because the mean of its divisors is an integer number (18456747200).

Almost surely, 2^203831700123 is an apocalyptic number.

203831700123 is a deficient number, since it is larger than the sum of its proper divisors (91476255077).

203831700123 is a wasteful number, since it uses less digits than its factorization.

203831700123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115354722.

The product of its (nonzero) digits is 6048, while the sum is 30.

Adding to 203831700123 its reverse (321007138302), we get a palindrome (524838838425).

The spelling of 203831700123 in words is "two hundred three billion, eight hundred thirty-one million, seven hundred thousand, one hundred twenty-three".