513513343122 has 64 divisors (see below), whose sum is σ = 1116654336000. Its totient is φ = 156491615808.

The previous prime is 513513343069. The next prime is 513513343141. The reversal of 513513343122 is 221343315315.

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, 4486279 + ... + 4599317.

It is an arithmetic number, because the mean of its divisors is an integer number (17447724000).

Almost surely, 2^513513343122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 513513343122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (558327168000).

513513343122 is an abundant number, since it is smaller than the sum of its proper divisors (603140992878).

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

513513343122 is a wasteful number, since it uses less digits than its factorization.

513513343122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113615.

The product of its digits is 32400, while the sum is 33.

Adding to 513513343122 its reverse (221343315315), we get a palindrome (734856658437).

The spelling of 513513343122 in words is "five hundred thirteen billion, five hundred thirteen million, three hundred forty-three thousand, one hundred twenty-two".