201123204104 has 64 divisors (see below), whose sum is σ = 400766486400. Its totient is φ = 94296628224.

The previous prime is 201123204049. The next prime is 201123204137. The reversal of 201123204104 is 401402321102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46956347 + ... + 46960629.

It is an arithmetic number, because the mean of its divisors is an integer number (6261976350).

Almost surely, 2^201123204104 is an apocalyptic number.

It is an amenable number.

201123204104 is a deficient number, since it is larger than the sum of its proper divisors (199643282296).

201123204104 is a wasteful number, since it uses less digits than its factorization.

201123204104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5502 (or 5498 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 201123204104 its reverse (401402321102), we get a palindrome (602525525206).

The spelling of 201123204104 in words is "two hundred one billion, one hundred twenty-three million, two hundred four thousand, one hundred four".