2013121130 has 32 divisors (see below), whose sum is σ = 3969084240. Its totient is φ = 731745280.

The previous prime is 2013121111. The next prime is 2013121151. The reversal of 2013121130 is 311213102.

It can be written as a sum of positive squares in 8 ways, for example, as 736416769 + 1276704361 = 27137^2 + 35731^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199241 + ... + 209100.

Almost surely, 2^2013121130 is an apocalyptic number.

2013121130 is a deficient number, since it is larger than the sum of its proper divisors (1955963110).

2013121130 is a wasteful number, since it uses less digits than its factorization.

2013121130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408394.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2013121130 is about 44867.8184225621. The cubic root of 2013121130 is about 1262.6703110436.

Adding to 2013121130 its reverse (311213102), we get a palindrome (2324334232).

The spelling of 2013121130 in words is "two billion, thirteen million, one hundred twenty-one thousand, one hundred thirty".