521120130 has 16 divisors (see below), whose sum is σ = 1250688384. Its totient is φ = 138965360.

The previous prime is 521120129. The next prime is 521120147. The reversal of 521120130 is 31021125.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 8685306 + ... + 8685365.

It is an arithmetic number, because the mean of its divisors is an integer number (78168024).

Almost surely, 2^521120130 is an apocalyptic number.

521120130 is an abundant number, since it is smaller than the sum of its proper divisors (729568254).

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

521120130 is a wasteful number, since it uses less digits than its factorization.

521120130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17370681.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 521120130 is about 22828.0557647821. The cubic root of 521120130 is about 804.7221396129.

Adding to 521120130 its reverse (31021125), we get a palindrome (552141255).

The spelling of 521120130 in words is "five hundred twenty-one million, one hundred twenty thousand, one hundred thirty".