2013021211 has 4 divisors (see below), whose sum is σ = 2030835672. Its totient is φ = 1995206752.

The previous prime is 2013021191. The next prime is 2013021229. The reversal of 2013021211 is 1121203102.

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

It is a cyclic number.

It is not a de Polignac number, because 2013021211 - 2¹⁵ = 2012988443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2013021191 and 2013021200.

It is not an unprimeable number, because it can be changed into a prime (2013021271) 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, 8907061 + ... + 8907286.

It is an arithmetic number, because the mean of its divisors is an integer number (507708918).

Almost surely, 2^2013021211 is an apocalyptic number.

2013021211 is a deficient number, since it is larger than the sum of its proper divisors (17814461).

2013021211 is a wasteful number, since it uses less digits than its factorization.

2013021211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17814460.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2013021211 is about 44866.7049269277. The cubic root of 2013021211 is about 1262.6494202917.

Adding to 2013021211 its reverse (1121203102), we get a palindrome (3134224313).

The spelling of 2013021211 in words is "two billion, thirteen million, twenty-one thousand, two hundred eleven".