204121131223112 has 16 divisors (see below), whose sum is σ = 383280995324400. Its totient is φ = 101912865803280.

The previous prime is 204121131223091. The next prime is 204121131223129. The reversal of 204121131223112 is 211322131121402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18462470162 + ... + 18462481217.

It is an arithmetic number, because the mean of its divisors is an integer number (23955062207775).

Almost surely, 2^{204121131223112} is an apocalyptic number.

It is an amenable number.

204121131223112 is a deficient number, since it is larger than the sum of its proper divisors (179159864101288).

204121131223112 is a wasteful number, since it uses less digits than its factorization.

204121131223112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36924952076 (or 36924952072 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 204121131223112 its reverse (211322131121402), we get a palindrome (415443262344514).

The spelling of 204121131223112 in words is "two hundred four trillion, one hundred twenty-one billion, one hundred thirty-one million, two hundred twenty-three thousand, one hundred twelve".