2013243321231 has 8 divisors (see below), whose sum is σ = 2982582698160. Its totient is φ = 1342162214136.

The previous prime is 2013243321227. The next prime is 2013243321251. The reversal of 2013243321231 is 1321233423102.

2013243321231 is a `hidden beast` number, since 2 + 0 + 1 + 324 + 332 + 1 + 2 + 3 + 1 = 666.

It is not a de Polignac number, because 2013243321231 - 2² = 2013243321227 is a prime.

It is a super-2 number, since 2×2013243321231² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 74564567453 = 2013243321231 / (2 + 0 + 1 + 3 + 2 + 4 + 3 + 3 + 2 + 1 + 2 + 3 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 2013243321195 and 2013243321204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013243321251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37282283700 + ... + 37282283753.

It is an arithmetic number, because the mean of its divisors is an integer number (372822837270).

Almost surely, 2^{2013243321231} is an apocalyptic number.

2013243321231 is a deficient number, since it is larger than the sum of its proper divisors (969339376929).

2013243321231 is an equidigital number, since it uses as much as digits as its factorization.

2013243321231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74564567462 (or 74564567456 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 2013243321231 its reverse (1321233423102), we get a palindrome (3334476744333).

The spelling of 2013243321231 in words is "two trillion, thirteen billion, two hundred forty-three million, three hundred twenty-one thousand, two hundred thirty-one".