21140401300013 has 4 divisors (see below), whose sum is σ = 21140412380220. Its totient is φ = 21140390219808.

The previous prime is 21140401300003. The next prime is 21140401300049. The reversal of 21140401300013 is 31000310404112.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2363761727209 + 18776639572804 = 1537453^2 + 4333202^2 .

It is a cyclic number.

It is not a de Polignac number, because 21140401300013 - 2²⁴ = 21140384522797 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 (21140401300003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1865978 + ... + 6764811.

It is an arithmetic number, because the mean of its divisors is an integer number (5285103095055).

Almost surely, 2^{21140401300013} is an apocalyptic number.

It is an amenable number.

21140401300013 is a deficient number, since it is larger than the sum of its proper divisors (11080207).

21140401300013 is an equidigital number, since it uses as much as digits as its factorization.

21140401300013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11080206.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 21140401300013 its reverse (31000310404112), we get a palindrome (52140711704125).

The spelling of 21140401300013 in words is "twenty-one trillion, one hundred forty billion, four hundred one million, three hundred thousand, thirteen".