520342111 has 8 divisors (see below), whose sum is σ = 539784000. Its totient is φ = 501221760.

The previous prime is 520342093. The next prime is 520342127. The reversal of 520342111 is 111243025.

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

It is a cyclic number.

It is not a de Polignac number, because 520342111 - 2⁵ = 520342079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520342811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77086 + ... + 83563.

It is an arithmetic number, because the mean of its divisors is an integer number (67473000).

Almost surely, 2^520342111 is an apocalyptic number.

520342111 is a deficient number, since it is larger than the sum of its proper divisors (19441889).

520342111 is a wasteful number, since it uses less digits than its factorization.

520342111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160769.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 520342111 is about 22811.0085485057. The cubic root of 520342111 is about 804.3214636361.

Adding to 520342111 its reverse (111243025), we get a palindrome (631585136).

It can be divided in two parts, 52034 and 2111, that added together give a palindrome (54145).

The spelling of 520342111 in words is "five hundred twenty million, three hundred forty-two thousand, one hundred eleven".