204013134123 has 8 divisors (see below), whose sum is σ = 272025936336. Its totient is φ = 136004544000.

The previous prime is 204013134079. The next prime is 204013134131. The reversal of 204013134123 is 321431310402.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 204013134123 - 2¹³ = 204013125931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 204013134093 and 204013134102.

It is not an unprimeable number, because it can be changed into a prime (204013134173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 938218 + ... + 1135023.

It is an arithmetic number, because the mean of its divisors is an integer number (34003242042).

Almost surely, 2^204013134123 is an apocalyptic number.

204013134123 is a deficient number, since it is larger than the sum of its proper divisors (68012802213).

204013134123 is a wasteful number, since it uses less digits than its factorization.

204013134123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2106045.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 204013134123 its reverse (321431310402), we get a palindrome (525444444525).

The spelling of 204013134123 in words is "two hundred four billion, thirteen million, one hundred thirty-four thousand, one hundred twenty-three".