513131545003 has 24 divisors (see below), whose sum is σ = 673626743280. Its totient is φ = 386055069120.

The previous prime is 513131544983. The next prime is 513131545007. The reversal of 513131545003 is 300545131315.

It is not a de Polignac number, because 513131545003 - 2⁵ = 513131544971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (513131545007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16398276 + ... + 16429537.

It is an arithmetic number, because the mean of its divisors is an integer number (28067780970).

Almost surely, 2^513131545003 is an apocalyptic number.

513131545003 is a deficient number, since it is larger than the sum of its proper divisors (160495198277).

513131545003 is a wasteful number, since it uses less digits than its factorization.

513131545003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32827867 (or 32827860 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 31.

Adding to 513131545003 its reverse (300545131315), we get a palindrome (813676676318).

The spelling of 513131545003 in words is "five hundred thirteen billion, one hundred thirty-one million, five hundred forty-five thousand, three".