513233231233530 has 64 divisors (see below), whose sum is σ = 1235425967612928. Its totient is φ = 136454845363200.

The previous prime is 513233231233511. The next prime is 513233231233589. The reversal of 513233231233530 is 35332132332315.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1907632599 + ... + 1907901621.

It is an arithmetic number, because the mean of its divisors is an integer number (19303530743952).

Almost surely, 2^{513233231233530} is an apocalyptic number.

513233231233530 is an abundant number, since it is smaller than the sum of its proper divisors (722192736379398).

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

513233231233530 is a wasteful number, since it uses less digits than its factorization.

513233231233530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458071.

The product of its (nonzero) digits is 437400, while the sum is 39.

Adding to 513233231233530 its reverse (35332132332315), we get a palindrome (548565363565845).

The spelling of 513233231233530 in words is "five hundred thirteen trillion, two hundred thirty-three billion, two hundred thirty-one million, two hundred thirty-three thousand, five hundred thirty".