520234530330 has 16 divisors (see below), whose sum is σ = 1248562872864. Its totient is φ = 138729208080.

The previous prime is 520234530251. The next prime is 520234530353. The reversal of 520234530330 is 33035432025.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 17341151011 = 520234530330 / (5 + 2 + 0 + 2 + 3 + 4 + 5 + 3 + 0 + 3 + 3 + 0).

It is a Curzon 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, 8670575476 + ... + 8670575535.

It is an arithmetic number, because the mean of its divisors is an integer number (78035179554).

Almost surely, 2^520234530330 is an apocalyptic number.

520234530330 is an abundant number, since it is smaller than the sum of its proper divisors (728328342534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

520234530330 is a wasteful number, since it uses less digits than its factorization.

520234530330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17341151021.

The product of its (nonzero) digits is 32400, while the sum is 30.

Adding to 520234530330 its reverse (33035432025), we get a palindrome (553269962355).

The spelling of 520234530330 in words is "five hundred twenty billion, two hundred thirty-four million, five hundred thirty thousand, three hundred thirty".