13231144242133 has 8 divisors (see below), whose sum is σ = 13734105247800. Its totient is φ = 12731297546688.

The previous prime is 13231144242131. The next prime is 13231144242139. The reversal of 13231144242133 is 33124244113231.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4347066541444 + 8884077700689 = 2084962^2 + 2980617^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13231144242133 - 2¹ = 13231144242131 is a prime.

It is a super-2 number, since 2×13231144242133² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13231144242131) 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, 778568898 + ... + 778585891.

It is an arithmetic number, because the mean of its divisors is an integer number (1716763155975).

Almost surely, 2^{13231144242133} is an apocalyptic number.

It is an amenable number.

13231144242133 is a deficient number, since it is larger than the sum of its proper divisors (502961005667).

13231144242133 is a wasteful number, since it uses less digits than its factorization.

13231144242133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1557155111.

The product of its digits is 41472, while the sum is 34.

Adding to 13231144242133 its reverse (33124244113231), we get a palindrome (46355388355364).

The spelling of 13231144242133 in words is "thirteen trillion, two hundred thirty-one billion, one hundred forty-four million, two hundred forty-two thousand, one hundred thirty-three".