520541143423401 has 8 divisors (see below), whose sum is σ = 694181533382080. Its totient is φ = 346964091206832.

The previous prime is 520541143423363. The next prime is 520541143423421. The reversal of 520541143423401 is 104324341145025.

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

It is not a de Polignac number, because 520541143423401 - 2⁶ = 520541143423337 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 520541143423401.

It is not an unprimeable number, because it can be changed into a prime (520541143423421) 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 7 ways as a sum of consecutive naturals, for example, 15834416350 + ... + 15834449223.

It is an arithmetic number, because the mean of its divisors is an integer number (86772691672760).

Almost surely, 2^{520541143423401} is an apocalyptic number.

It is an amenable number.

520541143423401 is a deficient number, since it is larger than the sum of its proper divisors (173640389958679).

520541143423401 is a wasteful number, since it uses less digits than its factorization.

520541143423401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31668871055.

The product of its (nonzero) digits is 230400, while the sum is 39.

Adding to 520541143423401 its reverse (104324341145025), we get a palindrome (624865484568426).

The spelling of 520541143423401 in words is "five hundred twenty trillion, five hundred forty-one billion, one hundred forty-three million, four hundred twenty-three thousand, four hundred one".