204515034502013 has 4 divisors (see below), whose sum is σ = 204537079896060. Its totient is φ = 204492989107968.

The previous prime is 204515034502007. The next prime is 204515034502019. The reversal of 204515034502013 is 310205430515402.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (204515034502007) and next prime (204515034502019).

It can be written as a sum of positive squares in 2 ways, for example, as 113207110253689 + 91307924248324 = 10639883^2 + 9555518^2 .

It is a cyclic number.

It is not a de Polignac number, because 204515034502013 - 2¹⁶ = 204515034436477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204515034502019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11022683108 + ... + 11022701661.

It is an arithmetic number, because the mean of its divisors is an integer number (51134269974015).

Almost surely, 2^{204515034502013} is an apocalyptic number.

It is an amenable number.

204515034502013 is a deficient number, since it is larger than the sum of its proper divisors (22045394047).

204515034502013 is an equidigital number, since it uses as much as digits as its factorization.

204515034502013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22045394046.

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 204515034502013 in words is "two hundred four trillion, five hundred fifteen billion, thirty-four million, five hundred two thousand, thirteen".