513143115240 has 128 divisors (see below), whose sum is σ = 1760128392960. Its totient is φ = 117237817344.

The previous prime is 513143115229. The next prime is 513143115257. The reversal of 513143115240 is 42511341315.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 513143115198 and 513143115207.

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, 1774942 + ... + 2043698.

It is an arithmetic number, because the mean of its divisors is an integer number (13751003070).

Almost surely, 2^513143115240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 513143115240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (880064196480).

513143115240 is an abundant number, since it is smaller than the sum of its proper divisors (1246985277720).

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

513143115240 is a wasteful number, since it uses less digits than its factorization.

513143115240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271051 (or 271047 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 513143115240 its reverse (42511341315), we get a palindrome (555654456555).

The spelling of 513143115240 in words is "five hundred thirteen billion, one hundred forty-three million, one hundred fifteen thousand, two hundred forty".