2013144231 has 16 divisors (see below), whose sum is σ = 3087968768. Its totient is φ = 1142748000.

The previous prime is 2013144223. The next prime is 2013144241. The reversal of 2013144231 is 1324413102.

It is not a de Polignac number, because 2013144231 - 2³ = 2013144223 is a prime.

It is a super-2 number, since 2×2013144231² = 8105499389617162722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2013144198 and 2013144207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013144241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 314260 + ... + 320601.

It is an arithmetic number, because the mean of its divisors is an integer number (192998048).

Almost surely, 2^2013144231 is an apocalyptic number.

2013144231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2013144231 is a deficient number, since it is larger than the sum of its proper divisors (1074824537).

2013144231 is a wasteful number, since it uses less digits than its factorization.

2013144231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635022.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 2013144231 is about 44868.0758557797. The cubic root of 2013144231 is about 1262.6751408300.

Adding to 2013144231 its reverse (1324413102), we get a palindrome (3337557333).

The spelling of 2013144231 in words is "two billion, thirteen million, one hundred forty-four thousand, two hundred thirty-one".