520401615267103 has 4 divisors (see below), whose sum is σ = 520420015097928. Its totient is φ = 520383215436280.

The previous prime is 520401615267071. The next prime is 520401615267119. The reversal of 520401615267103 is 301762516104025.

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 520401615267103 - 2⁵ = 520401615267071 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 520401615267103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520401615267803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9199872988 + ... + 9199929553.

It is an arithmetic number, because the mean of its divisors is an integer number (130105003774482).

Almost surely, 2^{520401615267103} is an apocalyptic number.

520401615267103 is a deficient number, since it is larger than the sum of its proper divisors (18399830825).

520401615267103 is a wasteful number, since it uses less digits than its factorization.

520401615267103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18399830824.

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 520401615267103 in words is "five hundred twenty trillion, four hundred one billion, six hundred fifteen million, two hundred sixty-seven thousand, one hundred three".