204023243132240 has 60 divisors (see below), whose sum is σ = 551799597890196. Its totient is φ = 69950826215424.

The previous prime is 204023243132213. The next prime is 204023243132251. The reversal of 204023243132240 is 42231342320402.

It can be written as a sum of positive squares in 2 ways, for example, as 145794806000704 + 58228437131536 = 12074552^2 + 7630756^2 .

It is a super-2 number, since 2×204023243132240² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 204023243132197 and 204023243132206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26023368929 + ... + 26023376768.

Almost surely, 2^{204023243132240} is an apocalyptic number.

204023243132240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204023243132240 is an abundant number, since it is smaller than the sum of its proper divisors (347776354757956).

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

204023243132240 is a wasteful number, since it uses less digits than its factorization.

204023243132240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52046745724 (or 52046745711 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 204023243132240 its reverse (42231342320402), we get a palindrome (246254585452642).

The spelling of 204023243132240 in words is "two hundred four trillion, twenty-three billion, two hundred forty-three million, one hundred thirty-two thousand, two hundred forty".