243103311133 has 4 divisors (see below), whose sum is σ = 243130923360. Its totient is φ = 243075698908.

The previous prime is 243103311127. The next prime is 243103311149. The reversal of 243103311133 is 331113301342.

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 a cyclic number.

It is not a de Polignac number, because 243103311133 - 2¹³ = 243103302941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243103311098 and 243103311107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243103311193) 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, 13792903 + ... + 13810516.

It is an arithmetic number, because the mean of its divisors is an integer number (60782730840).

Almost surely, 2^243103311133 is an apocalyptic number.

It is an amenable number.

243103311133 is a deficient number, since it is larger than the sum of its proper divisors (27612227).

243103311133 is an equidigital number, since it uses as much as digits as its factorization.

243103311133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27612226.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 243103311133 its reverse (331113301342), we get a palindrome (574216612475).

The spelling of 243103311133 in words is "two hundred forty-three billion, one hundred three million, three hundred eleven thousand, one hundred thirty-three".