243101440413 has 12 divisors (see below), whose sum is σ = 378157796380. Its totient is φ = 149600886336.

The previous prime is 243101440409. The next prime is 243101440459. The reversal of 243101440413 is 314044101342.

243101440413 is a `hidden beast` number, since 243 + 1 + 0 + 1 + 4 + 4 + 0 + 413 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 64461655449 + 178639784964 = 253893^2 + 422658^2 .

It is not a de Polignac number, because 243101440413 - 2² = 243101440409 is a prime.

It is a super-2 number, since 2×243101440413² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243101440013) 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, 1038894928 + ... + 1038895161.

Almost surely, 2^243101440413 is an apocalyptic number.

It is an amenable number.

243101440413 is a deficient number, since it is larger than the sum of its proper divisors (135056355967).

243101440413 is a wasteful number, since it uses less digits than its factorization.

243101440413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2077790108 (or 2077790105 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 243101440413 its reverse (314044101342), we get a palindrome (557145541755).

The spelling of 243101440413 in words is "two hundred forty-three billion, one hundred one million, four hundred forty thousand, four hundred thirteen".