243120100053 has 4 divisors (see below), whose sum is σ = 324160133408. Its totient is φ = 162080066700.

The previous prime is 243120100039. The next prime is 243120100121. The reversal of 243120100053 is 350001021342.

243120100053 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 243120100053 - 2¹² = 243120095957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243120100453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40520016673 + ... + 40520016678.

It is an arithmetic number, because the mean of its divisors is an integer number (81040033352).

Almost surely, 2^243120100053 is an apocalyptic number.

It is an amenable number.

243120100053 is a deficient number, since it is larger than the sum of its proper divisors (81040033355).

243120100053 is an equidigital number, since it uses as much as digits as its factorization.

243120100053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81040033354.

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 243120100053 its reverse (350001021342), we get a palindrome (593121121395).

The spelling of 243120100053 in words is "two hundred forty-three billion, one hundred twenty million, one hundred thousand, fifty-three".