204130320613 has 4 divisors (see below), whose sum is σ = 213005551968. Its totient is φ = 195255089260.

The previous prime is 204130320607. The next prime is 204130320629. The reversal of 204130320613 is 316023031402.

204130320613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 204130320613 - 2²¹ = 204128223461 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 (204130320913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4437615643 + ... + 4437615688.

It is an arithmetic number, because the mean of its divisors is an integer number (53251387992).

Almost surely, 2^204130320613 is an apocalyptic number.

204130320613 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

204130320613 is a deficient number, since it is larger than the sum of its proper divisors (8875231355).

204130320613 is an equidigital number, since it uses as much as digits as its factorization.

204130320613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8875231354.

The product of its (nonzero) digits is 2592, while the sum is 25.

The spelling of 204130320613 in words is "two hundred four billion, one hundred thirty million, three hundred twenty thousand, six hundred thirteen".