243055101040 has 20 divisors (see below), whose sum is σ = 565103110104. Its totient is φ = 97222040384.

The previous prime is 243055100993. The next prime is 243055101043. The reversal of 243055101040 is 40101550342.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 243055100996 and 243055101014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243055101043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1519094302 + ... + 1519094461.

Almost surely, 2^243055101040 is an apocalyptic number.

243055101040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243055101040 is an abundant number, since it is smaller than the sum of its proper divisors (322048009064).

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

243055101040 is a wasteful number, since it uses less digits than its factorization.

243055101040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3038188776 (or 3038188770 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 243055101040 its reverse (40101550342), we get a palindrome (283156651382).

The spelling of 243055101040 in words is "two hundred forty-three billion, fifty-five million, one hundred one thousand, forty".