2013021213 has 32 divisors (see below), whose sum is σ = 3097006080. Its totient is φ = 1139261760.

The previous prime is 2013021191. The next prime is 2013021229. The reversal of 2013021213 is 3121203102.

It is not a de Polignac number, because 2013021213 - 2⁹ = 2013020701 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2013021192 and 2013021201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013021293) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2209228 + ... + 2210138.

It is an arithmetic number, because the mean of its divisors is an integer number (96781440).

Almost surely, 2^2013021213 is an apocalyptic number.

It is an amenable number.

2013021213 is a deficient number, since it is larger than the sum of its proper divisors (1083984867).

2013021213 is a wasteful number, since it uses less digits than its factorization.

2013021213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1817.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2013021213 is about 44866.7049492160. The cubic root of 2013021213 is about 1262.6494207098.

Adding to 2013021213 its reverse (3121203102), we get a palindrome (5134224315).

The spelling of 2013021213 in words is "two billion, thirteen million, twenty-one thousand, two hundred thirteen".