2013110303221 has 4 divisors (see below), whose sum is σ = 2013143114700. Its totient is φ = 2013077491744.

The previous prime is 2013110303203. The next prime is 2013110303233. The reversal of 2013110303221 is 1223030113102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1672136058321 + 340974244900 = 1293111^2 + 583930^2 .

It is a cyclic number.

It is not a de Polignac number, because 2013110303221 - 2¹³ = 2013110295029 is a prime.

It is a super-2 number, since 2×2013110303221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013110304221) 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, 16313536 + ... + 16436473.

It is an arithmetic number, because the mean of its divisors is an integer number (503285778675).

Almost surely, 2^{2013110303221} is an apocalyptic number.

It is an amenable number.

2013110303221 is a deficient number, since it is larger than the sum of its proper divisors (32811479).

2013110303221 is an equidigital number, since it uses as much as digits as its factorization.

2013110303221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32811478.

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

Adding to 2013110303221 its reverse (1223030113102), we get a palindrome (3236140416323).

The spelling of 2013110303221 in words is "two trillion, thirteen billion, one hundred ten million, three hundred three thousand, two hundred twenty-one".