13423355533242 has 20 divisors (see below), whose sum is σ = 30078259621146. Its totient is φ = 4474451844360.

The previous prime is 13423355533241. The next prime is 13423355533249. The reversal of 13423355533242 is 24233555332431.

13423355533242 is a `hidden beast` number, since 1 + 3 + 4 + 2 + 3 + 355 + 53 + 3 + 242 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11091837254481 + 2331518278761 = 3330441^2 + 1526931^2 .

It is not an unprimeable number, because it can be changed into a prime (13423355533241) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 41430109509 + ... + 41430109832.

Almost surely, 2^{13423355533242} is an apocalyptic number.

13423355533242 is an abundant number, since it is smaller than the sum of its proper divisors (16654904087904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13423355533242 is an equidigital number, since it uses as much as digits as its factorization.

13423355533242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82860219355 (or 82860219346 counting only the distinct ones).

The product of its digits is 3888000, while the sum is 45.

It can be divided in two parts, 1 and 3423355533242, that added together give a palindrome (3423355533243).

The spelling of 13423355533242 in words is "thirteen trillion, four hundred twenty-three billion, three hundred fifty-five million, five hundred thirty-three thousand, two hundred forty-two".