204245300323315 has 4 divisors (see below), whose sum is σ = 245094360387984. Its totient is φ = 163396240258648.

The previous prime is 204245300323291. The next prime is 204245300323403. The reversal of 204245300323315 is 513323003542402.

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

It is a cyclic number.

It is not a de Polignac number, because 204245300323315 - 2¹⁵ = 204245300290547 is a prime.

It is a super-2 number, since 2×204245300323315² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20424530032327 + ... + 20424530032336.

It is an arithmetic number, because the mean of its divisors is an integer number (61273590096996).

Almost surely, 2^{204245300323315} is an apocalyptic number.

204245300323315 is a deficient number, since it is larger than the sum of its proper divisors (40849060064669).

204245300323315 is an equidigital number, since it uses as much as digits as its factorization.

204245300323315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40849060064668.

The product of its (nonzero) digits is 259200, while the sum is 37.

Adding to 204245300323315 its reverse (513323003542402), we get a palindrome (717568303865717).

The spelling of 204245300323315 in words is "two hundred four trillion, two hundred forty-five billion, three hundred million, three hundred twenty-three thousand, three hundred fifteen".