2013012231 has 4 divisors (see below), whose sum is σ = 2684016312. Its totient is φ = 1342008152.

The previous prime is 2013012229. The next prime is 2013012241. The reversal of 2013012231 is 1322103102.

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 2013012231 - 2¹ = 2013012229 is a prime.

It is a super-2 number, since 2×2013012231² = 8104436484311194722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2013012231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013012241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335502036 + ... + 335502041.

It is an arithmetic number, because the mean of its divisors is an integer number (671004078).

Almost surely, 2^2013012231 is an apocalyptic number.

2013012231 is a deficient number, since it is larger than the sum of its proper divisors (671004081).

2013012231 is an equidigital number, since it uses as much as digits as its factorization.

2013012231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671004080.

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

The square root of 2013012231 is about 44866.6048526072. The cubic root of 2013012231 is about 1262.6475427475.

Adding to 2013012231 its reverse (1322103102), we get a palindrome (3335115333).

The spelling of 2013012231 in words is "two billion, thirteen million, twelve thousand, two hundred thirty-one".