243135102444040 has 32 divisors (see below), whose sum is σ = 575846295264000. Its totient is φ = 92135407241664.

The previous prime is 243135102444023. The next prime is 243135102444041. The reversal of 243135102444040 is 40444201531342.

It is a happy number.

It is a super-2 number, since 2×243135102444040² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (243135102444041) 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, 159957303480 + ... + 159957304999.

It is an arithmetic number, because the mean of its divisors is an integer number (17995196727000).

Almost surely, 2^{243135102444040} is an apocalyptic number.

243135102444040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243135102444040 is an abundant number, since it is smaller than the sum of its proper divisors (332711192819960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243135102444040 is a wasteful number, since it uses less digits than its factorization.

243135102444040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319914608509 (or 319914608505 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 37.

Adding to 243135102444040 its reverse (40444201531342), we get a palindrome (283579303975382).

The spelling of 243135102444040 in words is "two hundred forty-three trillion, one hundred thirty-five billion, one hundred two million, four hundred forty-four thousand, forty".