513105200122 has 8 divisors (see below), whose sum is σ = 769815628596. Its totient is φ = 256499990592.

The previous prime is 513105200117. The next prime is 513105200147. The reversal of 513105200122 is 221002501315.

It can be written as a sum of positive squares in 2 ways, for example, as 485863367521 + 27241832601 = 697039^2 + 165051^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 513105200093 and 513105200102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26292543 + ... + 26312050.

Almost surely, 2^513105200122 is an apocalyptic number.

513105200122 is a deficient number, since it is larger than the sum of its proper divisors (256710428474).

513105200122 is a wasteful number, since it uses less digits than its factorization.

513105200122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52609472.

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 513105200122 its reverse (221002501315), we get a palindrome (734107701437).

The spelling of 513105200122 in words is "five hundred thirteen billion, one hundred five million, two hundred thousand, one hundred twenty-two".