515313404242 has 128 divisors (see below), whose sum is σ = 1013602867200. Its totient is φ = 190795046400.

The previous prime is 515313404233. The next prime is 515313404317. The reversal of 515313404242 is 242404313515.

It is a junction number, because it is equal to n+sod(n) for n = 515313404198 and 515313404207.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 101417142 + ... + 101422222.

It is an arithmetic number, because the mean of its divisors is an integer number (7918772400).

Almost surely, 2^515313404242 is an apocalyptic number.

515313404242 is a deficient number, since it is larger than the sum of its proper divisors (498289462958).

515313404242 is a wasteful number, since it uses less digits than its factorization.

515313404242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5472.

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 515313404242 its reverse (242404313515), we get a palindrome (757717717757).

The spelling of 515313404242 in words is "five hundred fifteen billion, three hundred thirteen million, four hundred four thousand, two hundred forty-two".