204123301430 has 48 divisors (see below), whose sum is σ = 376427063376. Its totient is φ = 79674598080.

The previous prime is 204123301429. The next prime is 204123301439. The reversal of 204123301430 is 34103321402.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 204123301396 and 204123301405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204123301439) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9828317 + ... + 9849063.

It is an arithmetic number, because the mean of its divisors is an integer number (7842230487).

Almost surely, 2^204123301430 is an apocalyptic number.

204123301430 is a deficient number, since it is larger than the sum of its proper divisors (172303761946).

204123301430 is a wasteful number, since it uses less digits than its factorization.

204123301430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21069 (or 20942 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 204123301430 its reverse (34103321402), we get a palindrome (238226622832).

The spelling of 204123301430 in words is "two hundred four billion, one hundred twenty-three million, three hundred one thousand, four hundred thirty".