513111102243 has 16 divisors (see below), whose sum is σ = 700653203712. Its totient is φ = 333916940000.

The previous prime is 513111102239. The next prime is 513111102331. The reversal of 513111102243 is 342201111315.

It is a cyclic number.

It is not a de Polignac number, because 513111102243 - 2² = 513111102239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (513111202243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11904093 + ... + 11947118.

It is an arithmetic number, because the mean of its divisors is an integer number (43790825232).

Almost surely, 2^513111102243 is an apocalyptic number.

513111102243 is a deficient number, since it is larger than the sum of its proper divisors (187542101469).

513111102243 is a wasteful number, since it uses less digits than its factorization.

513111102243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23851386.

The product of its (nonzero) digits is 720, while the sum is 24.

Adding to 513111102243 its reverse (342201111315), we get a palindrome (855312213558).

The spelling of 513111102243 in words is "five hundred thirteen billion, one hundred eleven million, one hundred two thousand, two hundred forty-three".