15313313252503 has 8 divisors (see below), whose sum is σ = 17927781369120. Its totient is φ = 12805558120320.

The previous prime is 15313313252417. The next prime is 15313313252557. The reversal of 15313313252503 is 30525231331351.

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

It is a de Polignac number, because none of the positive numbers 2^k-15313313252503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15313313222503) 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 7 ways as a sum of consecutive naturals, for example, 26678245798 + ... + 26678246371.

It is an arithmetic number, because the mean of its divisors is an integer number (2240972671140).

Almost surely, 2^{15313313252503} is an apocalyptic number.

15313313252503 is a deficient number, since it is larger than the sum of its proper divisors (2614468116617).

15313313252503 is an equidigital number, since it uses as much as digits as its factorization.

15313313252503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53356492217.

The product of its (nonzero) digits is 121500, while the sum is 37.

Adding to 15313313252503 its reverse (30525231331351), we get a palindrome (45838544583854).

The spelling of 15313313252503 in words is "fifteen trillion, three hundred thirteen billion, three hundred thirteen million, two hundred fifty-two thousand, five hundred three".