243135181531342 has 8 divisors (see below), whose sum is σ = 364722387410736. Its totient is φ = 121561052394432.

The previous prime is 243135181531303. The next prime is 243135181531373.

243135181531342 is nontrivially palindromic in base 10.

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

It is a super-2 number, since 2×243135181531342² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243135181531292 and 243135181531301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3269139138 + ... + 3269213509.

It is an arithmetic number, because the mean of its divisors is an integer number (45590298426342).

Almost surely, 2^{243135181531342} is an apocalyptic number.

243135181531342 is a deficient number, since it is larger than the sum of its proper divisors (121587205879394).

243135181531342 is a wasteful number, since it uses less digits than its factorization.

243135181531342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6538371242.

The product of its digits is 1036800, while the sum is 46.

The spelling of 243135181531342 in words is "two hundred forty-three trillion, one hundred thirty-five billion, one hundred eighty-one million, five hundred thirty-one thousand, three hundred forty-two".