2013343220421 has 48 divisors (see below), whose sum is σ = 3335642570624. Its totient is φ = 1205494415424.

The previous prime is 2013343220387. The next prime is 2013343220423. The reversal of 2013343220421 is 1240223433102.

2013343220421 is a `hidden beast` number, since 2 + 0 + 1 + 3 + 3 + 432 + 204 + 21 = 666.

It is not a de Polignac number, because 2013343220421 - 2²³ = 2013334831813 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013343220423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8495761 + ... + 8729526.

Almost surely, 2^{2013343220421} is an apocalyptic number.

It is an amenable number.

2013343220421 is a deficient number, since it is larger than the sum of its proper divisors (1322299350203).

2013343220421 is a wasteful number, since it uses less digits than its factorization.

2013343220421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17225352 (or 17225340 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 2013343220421 its reverse (1240223433102), we get a palindrome (3253566653523).

The spelling of 2013343220421 in words is "two trillion, thirteen billion, three hundred forty-three million, two hundred twenty thousand, four hundred twenty-one".