204030012342040 has 64 divisors (see below), whose sum is σ = 470305508117760. Its totient is φ = 79614490644480.

The previous prime is 204030012341957. The next prime is 204030012342139. The reversal of 204030012342040 is 40243210030402.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 204030012341996 and 204030012342014.

It is a congruent number.

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, 13288192 + ... + 24179248.

It is an arithmetic number, because the mean of its divisors is an integer number (7348523564340).

Almost surely, 2^{204030012342040} is an apocalyptic number.

204030012342040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204030012342040 is an abundant number, since it is smaller than the sum of its proper divisors (266275495775720).

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

204030012342040 is a wasteful number, since it uses less digits than its factorization.

204030012342040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10902532 (or 10902528 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 204030012342040 its reverse (40243210030402), we get a palindrome (244273222372442).

The spelling of 204030012342040 in words is "two hundred four trillion, thirty billion, twelve million, three hundred forty-two thousand, forty".