243242402331 has 8 divisors (see below), whose sum is σ = 326197904400. Its totient is φ = 161224250912.

The previous prime is 243242402311. The next prime is 243242402393. The reversal of 243242402331 is 133204242342.

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 243242402331 - 2⁷ = 243242402203 is a prime.

It is a super-2 number, since 2×243242402331² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (243242402311) 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, 234337056 + ... + 234338093.

It is an arithmetic number, because the mean of its divisors is an integer number (40774738050).

Almost surely, 2^243242402331 is an apocalyptic number.

243242402331 is a deficient number, since it is larger than the sum of its proper divisors (82955502069).

243242402331 is a wasteful number, since it uses less digits than its factorization.

243242402331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468675325.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 243242402331 its reverse (133204242342), we get a palindrome (376446644673).

The spelling of 243242402331 in words is "two hundred forty-three billion, two hundred forty-two million, four hundred two thousand, three hundred thirty-one".