204310120430040 has 128 divisors (see below), whose sum is σ = 645218240889600. Its totient is φ = 51612917368320.

The previous prime is 204310120430011. The next prime is 204310120430041. The reversal of 204310120430040 is 40034021013402.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204310120430041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50163199 + ... + 54082961.

It is an arithmetic number, because the mean of its divisors is an integer number (5040767506950).

Almost surely, 2^{204310120430040} is an apocalyptic number.

204310120430040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204310120430040 is an abundant number, since it is smaller than the sum of its proper divisors (440908120459560).

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

204310120430040 is a wasteful number, since it uses less digits than its factorization.

204310120430040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3942657 (or 3942653 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 204310120430040 its reverse (40034021013402), we get a palindrome (244344141443442).

The spelling of 204310120430040 in words is "two hundred four trillion, three hundred ten billion, one hundred twenty million, four hundred thirty thousand, forty".