21013134001300 has 72 divisors (see below), whose sum is σ = 53793623098880. Its totient is φ = 6972099753600.

The previous prime is 21013134001199. The next prime is 21013134001369. The reversal of 21013134001300 is 310043131012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 484151895 + ... + 484195294.

Almost surely, 2^{21013134001300} is an apocalyptic number.

21013134001300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21013134001300 is an abundant number, since it is smaller than the sum of its proper divisors (32780489097580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21013134001300 is a wasteful number, since it uses less digits than its factorization.

21013134001300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968347241 (or 968347234 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21013134001300 its reverse (310043131012), we get a palindrome (21323177132312).

The spelling of 21013134001300 in words is "twenty-one trillion, thirteen billion, one hundred thirty-four million, one thousand, three hundred".