520021102 has 16 divisors (see below), whose sum is σ = 799718832. Its totient is φ = 253471680.

The previous prime is 520021093. The next prime is 520021189. The reversal of 520021102 is 201120025.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40938 + ... + 52114.

It is an arithmetic number, because the mean of its divisors is an integer number (49982427).

Almost surely, 2^520021102 is an apocalyptic number.

520021102 is a deficient number, since it is larger than the sum of its proper divisors (279697730).

520021102 is a wasteful number, since it uses less digits than its factorization.

520021102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11763.

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 520021102 is about 22803.9711892468. The cubic root of 520021102 is about 804.1560291803.

Adding to 520021102 its reverse (201120025), we get a palindrome (721141127).

The spelling of 520021102 in words is "five hundred twenty million, twenty-one thousand, one hundred two".