243044020233 has 32 divisors (see below), whose sum is σ = 411528806400. Its totient is φ = 138873622608.

The previous prime is 243044020169. The next prime is 243044020237. The reversal of 243044020233 is 332020440342.

243044020233 is a `hidden beast` number, since 24 + 3 + 0 + 4 + 402 + 0 + 233 = 666.

It is not a de Polignac number, because 243044020233 - 2⁶ = 243044020169 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 243044020197 and 243044020206.

It is not an unprimeable number, because it can be changed into a prime (243044020237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4143810 + ... + 4202052.

It is an arithmetic number, because the mean of its divisors is an integer number (12860275200).

Almost surely, 2^243044020233 is an apocalyptic number.

It is an amenable number.

243044020233 is a deficient number, since it is larger than the sum of its proper divisors (168484786167).

243044020233 is a wasteful number, since it uses less digits than its factorization.

243044020233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80338 (or 80332 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

Adding to 243044020233 its reverse (332020440342), we get a palindrome (575064460575).

The spelling of 243044020233 in words is "two hundred forty-three billion, forty-four million, twenty thousand, two hundred thirty-three".