520013502451343 has 8 divisors (see below), whose sum is σ = 525062678894208. Its totient is φ = 514964335656024.

The previous prime is 520013502451207. The next prime is 520013502451441. The reversal of 520013502451343 is 343154205310025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 520013502451343 - 2¹⁸ = 520013502189199 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 520013502451297 and 520013502451306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520013502471343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156494096 + ... + 159782442.

It is an arithmetic number, because the mean of its divisors is an integer number (65632834861776).

Almost surely, 2^{520013502451343} is an apocalyptic number.

520013502451343 is a deficient number, since it is larger than the sum of its proper divisors (5049176442865).

520013502451343 is a wasteful number, since it uses less digits than its factorization.

520013502451343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4823773.

The product of its (nonzero) digits is 216000, while the sum is 38.

Adding to 520013502451343 its reverse (343154205310025), we get a palindrome (863167707761368).

The spelling of 520013502451343 in words is "five hundred twenty trillion, thirteen billion, five hundred two million, four hundred fifty-one thousand, three hundred forty-three".