21013352535103 has 8 divisors (see below), whose sum is σ = 21035976475248. Its totient is φ = 20990736221184.

The previous prime is 21013352535029. The next prime is 21013352535143. The reversal of 21013352535103 is 30153525331012.

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 21013352535103 - 2³³ = 21004762600511 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 (21013352535143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3615825 + ... + 7422997.

It is an arithmetic number, because the mean of its divisors is an integer number (2629497059406).

Almost surely, 2^{21013352535103} is an apocalyptic number.

21013352535103 is a deficient number, since it is larger than the sum of its proper divisors (22623940145).

21013352535103 is a wasteful number, since it uses less digits than its factorization.

21013352535103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3813113.

The product of its (nonzero) digits is 40500, while the sum is 34.

Adding to 21013352535103 its reverse (30153525331012), we get a palindrome (51166877866115).

The spelling of 21013352535103 in words is "twenty-one trillion, thirteen billion, three hundred fifty-two million, five hundred thirty-five thousand, one hundred three".