21013003301103 has 48 divisors (see below), whose sum is σ = 33133582104480. Its totient is φ = 12726624614400.

The previous prime is 21013003301099. The next prime is 21013003301107. The reversal of 21013003301103 is 30110330031012.

It is a happy number.

21013003301103 is a `hidden beast` number, since 21 + 0 + 1 + 300 + 330 + 1 + 10 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (21013003301099) and next prime (21013003301107).

It is not a de Polignac number, because 21013003301103 - 2² = 21013003301099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21013003301107) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1186295175 + ... + 1186312887.

It is an arithmetic number, because the mean of its divisors is an integer number (690282960510).

Almost surely, 2^{21013003301103} is an apocalyptic number.

21013003301103 is a deficient number, since it is larger than the sum of its proper divisors (12120578803377).

21013003301103 is a wasteful number, since it uses less digits than its factorization.

21013003301103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25080 (or 25077 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 21013003301103 its reverse (30110330031012), we get a palindrome (51123333332115).

The spelling of 21013003301103 in words is "twenty-one trillion, thirteen billion, three million, three hundred one thousand, one hundred three".