204123013110 has 48 divisors (see below), whose sum is σ = 549020525040. Its totient is φ = 52555809600.

The previous prime is 204123013079. The next prime is 204123013121. The reversal of 204123013110 is 11310321402.

It is a super-2 number, since 2×204123013110² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39101416 + ... + 39106635.

It is an arithmetic number, because the mean of its divisors is an integer number (11437927605).

Almost surely, 2^204123013110 is an apocalyptic number.

204123013110 is an abundant number, since it is smaller than the sum of its proper divisors (344897511930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204123013110 is a wasteful number, since it uses less digits than its factorization.

204123013110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78208093 (or 78208090 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 204123013110 its reverse (11310321402), we get a palindrome (215433334512).

The spelling of 204123013110 in words is "two hundred four billion, one hundred twenty-three million, thirteen thousand, one hundred ten".