2013513381 has 24 divisors (see below), whose sum is σ = 3186821664. Its totient is φ = 1214921760.

The previous prime is 2013513379. The next prime is 2013513419. The reversal of 2013513381 is 1833153102.

2013513381 is a `hidden beast` number, since 201 + 351 + 33 + 81 = 666.

It is not a de Polignac number, because 2013513381 - 2¹ = 2013513379 is a prime.

It is a super-2 number, since 2×2013513381² = 8108472270932102322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013513781) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22326 + ... + 67271.

It is an arithmetic number, because the mean of its divisors is an integer number (132784236).

Almost surely, 2^2013513381 is an apocalyptic number.

It is an amenable number.

2013513381 is a deficient number, since it is larger than the sum of its proper divisors (1173308283).

2013513381 is a wasteful number, since it uses less digits than its factorization.

2013513381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89841 (or 89838 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2013513381 is about 44872.1893938774. The cubic root of 2013513381 is about 1262.7523149727.

Adding to 2013513381 its reverse (1833153102), we get a palindrome (3846666483).

The spelling of 2013513381 in words is "two billion, thirteen million, five hundred thirteen thousand, three hundred eighty-one".