20315445201503 has 8 divisors (see below), whose sum is σ = 20323483759488. Its totient is φ = 20307407571864.

The previous prime is 20315445201481. The next prime is 20315445201521. The reversal of 20315445201503 is 30510254451302.

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 20315445201503 - 2⁶ = 20315445201439 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 (20315445207503) 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, 45300350 + ... + 45746612.

It is an arithmetic number, because the mean of its divisors is an integer number (2540435469936).

Almost surely, 2^{20315445201503} is an apocalyptic number.

20315445201503 is a deficient number, since it is larger than the sum of its proper divisors (8038557985).

20315445201503 is a wasteful number, since it uses less digits than its factorization.

20315445201503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464173.

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 20315445201503 its reverse (30510254451302), we get a palindrome (50825699652805).

The spelling of 20315445201503 in words is "twenty trillion, three hundred fifteen billion, four hundred forty-five million, two hundred one thousand, five hundred three".