204123144004 has 24 divisors (see below), whose sum is σ = 389328488640. Its totient is φ = 93075611424.

The previous prime is 204123143981. The next prime is 204123144053. The reversal of 204123144004 is 400441321402.

It is a self number, because there is not a number n which added to its sum of digits gives 204123144004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23642944 + ... + 23651575.

It is an arithmetic number, because the mean of its divisors is an integer number (16222020360).

Almost surely, 2^204123144004 is an apocalyptic number.

It is an amenable number.

204123144004 is a deficient number, since it is larger than the sum of its proper divisors (185205344636).

204123144004 is a wasteful number, since it uses less digits than its factorization.

204123144004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47294619 (or 47294617 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 204123144004 its reverse (400441321402), we get a palindrome (604564465406).

The spelling of 204123144004 in words is "two hundred four billion, one hundred twenty-three million, one hundred forty-four thousand, four".