521301230 has 16 divisors (see below), whose sum is σ = 944321760. Its totient is φ = 207191712.

The previous prime is 521301227. The next prime is 521301259. The reversal of 521301230 is 32103125.

It is a junction number, because it is equal to n+sod(n) for n = 521301199 and 521301208.

It is a congruent number.

It is an unprimeable number.

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, 164450 + ... + 167589.

It is an arithmetic number, because the mean of its divisors is an integer number (59020110).

Almost surely, 2^521301230 is an apocalyptic number.

521301230 is a deficient number, since it is larger than the sum of its proper divisors (423020530).

521301230 is a wasteful number, since it uses less digits than its factorization.

521301230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332203.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 521301230 is about 22832.0220304729. The cubic root of 521301230 is about 804.8153480002.

Adding to 521301230 its reverse (32103125), we get a palindrome (553404355).

The spelling of 521301230 in words is "five hundred twenty-one million, three hundred one thousand, two hundred thirty".