2013413221 has 4 divisors (see below), whose sum is σ = 2013666700. Its totient is φ = 2013159744.

The previous prime is 2013413179. The next prime is 2013413287. The reversal of 2013413221 is 1223143102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1223143102 = 2 ⋅611571551.

It can be written as a sum of positive squares in 2 ways, for example, as 906852996 + 1106560225 = 30114^2 + 33265^2 .

It is a cyclic number.

It is not a de Polignac number, because 2013413221 - 2⁷ = 2013413093 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 (2013473221) 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, 114426 + ... + 130843.

It is an arithmetic number, because the mean of its divisors is an integer number (503416675).

Almost surely, 2^2013413221 is an apocalyptic number.

It is an amenable number.

2013413221 is a deficient number, since it is larger than the sum of its proper divisors (253479).

2013413221 is an equidigital number, since it uses as much as digits as its factorization.

2013413221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253478.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2013413221 is about 44871.0733212389. The cubic root of 2013413221 is about 1262.7313765523.

Adding to 2013413221 its reverse (1223143102), we get a palindrome (3236556323).

The spelling of 2013413221 in words is "two billion, thirteen million, four hundred thirteen thousand, two hundred twenty-one".