243120151331 has 8 divisors (see below), whose sum is σ = 243932582400. Its totient is φ = 242307917640.

The previous prime is 243120151321. The next prime is 243120151333. The reversal of 243120151331 is 133151021342.

243120151331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 243120151331 - 2¹⁰ = 243120150307 is a prime.

It is a super-2 number, since 2×243120151331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 243120151331.

It is not an unprimeable number, because it can be changed into a prime (243120151333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2666780 + ... + 2756438.

It is an arithmetic number, because the mean of its divisors is an integer number (30491572800).

Almost surely, 2^243120151331 is an apocalyptic number.

243120151331 is a deficient number, since it is larger than the sum of its proper divisors (812431069).

243120151331 is an equidigital number, since it uses as much as digits as its factorization.

243120151331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98689.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 243120151331 its reverse (133151021342), we get a palindrome (376271172673).

The spelling of 243120151331 in words is "two hundred forty-three billion, one hundred twenty million, one hundred fifty-one thousand, three hundred thirty-one".