243550401231 has 8 divisors (see below), whose sum is σ = 324765805104. Its totient is φ = 162350965760.

The previous prime is 243550401197. The next prime is 243550401253. The reversal of 243550401231 is 132104055342.

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 243550401231 - 2²² = 243546206927 is a prime.

It is a super-3 number, since 3×243550401231³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243550401931) 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, 3956466 + ... + 4017551.

It is an arithmetic number, because the mean of its divisors is an integer number (40595725638).

Almost surely, 2^243550401231 is an apocalyptic number.

243550401231 is a deficient number, since it is larger than the sum of its proper divisors (81215403873).

243550401231 is a wasteful number, since it uses less digits than its factorization.

243550401231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7984201.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 243550401231 its reverse (132104055342), we get a palindrome (375654456573).

The spelling of 243550401231 in words is "two hundred forty-three billion, five hundred fifty million, four hundred one thousand, two hundred thirty-one".