243248400233 has 4 divisors (see below), whose sum is σ = 243249419520. Its totient is φ = 243247380948.

The previous prime is 243248400181. The next prime is 243248400257. The reversal of 243248400233 is 332004842342.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 243248400233 - 2¹² = 243248396137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243248400193 and 243248400202.

It is not an unprimeable number, because it can be changed into a prime (243248400133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62216 + ... + 700262.

It is an arithmetic number, because the mean of its divisors is an integer number (60812354880).

Almost surely, 2^243248400233 is an apocalyptic number.

It is an amenable number.

243248400233 is a deficient number, since it is larger than the sum of its proper divisors (1019287).

243248400233 is an equidigital number, since it uses as much as digits as its factorization.

243248400233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019286.

The product of its (nonzero) digits is 110592, while the sum is 35.

The spelling of 243248400233 in words is "two hundred forty-three billion, two hundred forty-eight million, four hundred thousand, two hundred thirty-three".