520214343531 has 16 divisors (see below), whose sum is σ = 718909052160. Its totient is φ = 334210332960.

The previous prime is 520214343503. The next prime is 520214343533. The reversal of 520214343531 is 135343412025.

It is not a de Polignac number, because 520214343531 - 2⁵ = 520214343499 is a prime.

It is a super-2 number, since 2×520214343531² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 520214343492 and 520214343501.

It is not an unprimeable number, because it can be changed into a prime (520214343533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5671015 + ... + 5762016.

It is an arithmetic number, because the mean of its divisors is an integer number (44931815760).

Almost surely, 2^520214343531 is an apocalyptic number.

520214343531 is a deficient number, since it is larger than the sum of its proper divisors (198694708629).

520214343531 is a wasteful number, since it uses less digits than its factorization.

520214343531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11433586.

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 520214343531 its reverse (135343412025), we get a palindrome (655557755556).

The spelling of 520214343531 in words is "five hundred twenty billion, two hundred fourteen million, three hundred forty-three thousand, five hundred thirty-one".