20215040535303 has 4 divisors (see below), whose sum is σ = 26953387380408. Its totient is φ = 13476693690200.

The previous prime is 20215040535271. The next prime is 20215040535329. The reversal of 20215040535303 is 30353504051202.

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 20215040535303 - 2⁵ = 20215040535271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20215040535383) 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 3 ways as a sum of consecutive naturals, for example, 3369173422548 + ... + 3369173422553.

It is an arithmetic number, because the mean of its divisors is an integer number (6738346845102).

Almost surely, 2^{20215040535303} is an apocalyptic number.

20215040535303 is a deficient number, since it is larger than the sum of its proper divisors (6738346845105).

20215040535303 is an equidigital number, since it uses as much as digits as its factorization.

20215040535303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6738346845104.

The product of its (nonzero) digits is 54000, while the sum is 33.

Adding to 20215040535303 its reverse (30353504051202), we get a palindrome (50568544586505).

The spelling of 20215040535303 in words is "twenty trillion, two hundred fifteen billion, forty million, five hundred thirty-five thousand, three hundred three".