520720314271 has 4 divisors (see below), whose sum is σ = 521181538000. Its totient is φ = 520259090544.

The previous prime is 520720314241. The next prime is 520720314277. The reversal of 520720314271 is 172413027025.

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 520720314271 - 2⁵ = 520720314239 is a prime.

It is a super-2 number, since 2×520720314271² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520720314277) 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, 230610171 + ... + 230612428.

It is an arithmetic number, because the mean of its divisors is an integer number (130295384500).

Almost surely, 2^520720314271 is an apocalyptic number.

520720314271 is a deficient number, since it is larger than the sum of its proper divisors (461223729).

520720314271 is a wasteful number, since it uses less digits than its factorization.

520720314271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461223728.

The product of its (nonzero) digits is 23520, while the sum is 34.

The spelling of 520720314271 in words is "five hundred twenty billion, seven hundred twenty million, three hundred fourteen thousand, two hundred seventy-one".