513661030303 has 8 divisors (see below), whose sum is σ = 516081897936. Its totient is φ = 511245398400.

The previous prime is 513661030297. The next prime is 513661030373. The reversal of 513661030303 is 303030166315.

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

It is a cyclic number.

It is not a de Polignac number, because 513661030303 - 2¹³ = 513661022111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (513661030373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1112188 + ... + 1504753.

It is an arithmetic number, because the mean of its divisors is an integer number (64510237242).

Almost surely, 2^513661030303 is an apocalyptic number.

513661030303 is a deficient number, since it is larger than the sum of its proper divisors (2420867633).

513661030303 is a wasteful number, since it uses less digits than its factorization.

513661030303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2617865.

The product of its (nonzero) digits is 14580, while the sum is 31.

Adding to 513661030303 its reverse (303030166315), we get a palindrome (816691196618).

The spelling of 513661030303 in words is "five hundred thirteen billion, six hundred sixty-one million, thirty thousand, three hundred three".