513643130423003 has 4 divisors (see below), whose sum is σ = 587020720483440. Its totient is φ = 440265540362568.

The previous prime is 513643130422999. The next prime is 513643130423011. The reversal of 513643130423003 is 300324031346315.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 513643130423003 - 2² = 513643130422999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (513643130423063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36688795030208 + ... + 36688795030221.

It is an arithmetic number, because the mean of its divisors is an integer number (146755180120860).

Almost surely, 2^{513643130423003} is an apocalyptic number.

513643130423003 is a deficient number, since it is larger than the sum of its proper divisors (73377590060437).

513643130423003 is an equidigital number, since it uses as much as digits as its factorization.

513643130423003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73377590060436.

The product of its (nonzero) digits is 233280, while the sum is 38.

Adding to 513643130423003 its reverse (300324031346315), we get a palindrome (813967161769318).

The spelling of 513643130423003 in words is "five hundred thirteen trillion, six hundred forty-three billion, one hundred thirty million, four hundred twenty-three thousand, three".