520452331101 has 10 divisors (see below), whose sum is σ = 777465828062. Its totient is φ = 346968220680.

The previous prime is 520452331097. The next prime is 520452331111. The reversal of 520452331101 is 101133254025.

520452331101 is a `hidden beast` number, since 5 + 2 + 0 + 4 + 523 + 31 + 101 = 666.

It can be written as a sum of positive squares in only one way, i.e., 288826705476 + 231625625625 = 537426^2 + 481275^2 .

It is not a de Polignac number, because 520452331101 - 2² = 520452331097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520452331111) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3212668630 + ... + 3212668791.

Almost surely, 2^520452331101 is an apocalyptic number.

It is an amenable number.

520452331101 is a deficient number, since it is larger than the sum of its proper divisors (257013496961).

520452331101 is an equidigital number, since it uses as much as digits as its factorization.

520452331101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6425337433 (or 6425337424 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 520452331101 its reverse (101133254025), we get a palindrome (621585585126).

The spelling of 520452331101 in words is "five hundred twenty billion, four hundred fifty-two million, three hundred thirty-one thousand, one hundred one".