520136346171323 has 4 divisors (see below), whose sum is σ = 594441538481520. Its totient is φ = 445831153861128.

The previous prime is 520136346171293. The next prime is 520136346171353. The reversal of 520136346171323 is 323171643631025.

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 (520136346171293) and next prime (520136346171353).

It is not a de Polignac number, because 520136346171323 - 2¹⁰ = 520136346170299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (520136346171353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37152596155088 + ... + 37152596155101.

It is an arithmetic number, because the mean of its divisors is an integer number (148610384620380).

Almost surely, 2^{520136346171323} is an apocalyptic number.

520136346171323 is a deficient number, since it is larger than the sum of its proper divisors (74305192310197).

520136346171323 is an equidigital number, since it uses as much as digits as its factorization.

520136346171323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74305192310196.

The product of its (nonzero) digits is 1632960, while the sum is 47.

The spelling of 520136346171323 in words is "five hundred twenty trillion, one hundred thirty-six billion, three hundred forty-six million, one hundred seventy-one thousand, three hundred twenty-three".