243133240401 has 12 divisors (see below), whose sum is σ = 351230755200. Its totient is φ = 162071151480.

The previous prime is 243133240381. The next prime is 243133240411. The reversal of 243133240401 is 104042331342.

243133240401 is a `hidden beast` number, since 2 + 4 + 3 + 13 + 3 + 240 + 401 = 666.

It is not a de Polignac number, because 243133240401 - 2¹⁴ = 243133224017 is a prime.

It is a super-2 number, since 2×243133240401² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (243133240411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1385565 + ... + 1551146.

It is an arithmetic number, because the mean of its divisors is an integer number (29269229600).

Almost surely, 2^243133240401 is an apocalyptic number.

It is an amenable number.

243133240401 is a deficient number, since it is larger than the sum of its proper divisors (108097514799).

243133240401 is a wasteful number, since it uses less digits than its factorization.

243133240401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2945916 (or 2945913 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 243133240401 its reverse (104042331342), we get a palindrome (347175571743).

The spelling of 243133240401 in words is "two hundred forty-three billion, one hundred thirty-three million, two hundred forty thousand, four hundred one".