243434154233 has 4 divisors (see below), whose sum is σ = 256246478160. Its totient is φ = 230621830308.

The previous prime is 243434154209. The next prime is 243434154253. The reversal of 243434154233 is 332451434342.

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 243434154233 - 2²⁴ = 243417377017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243434154253) 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, 6406161935 + ... + 6406161972.

It is an arithmetic number, because the mean of its divisors is an integer number (64061619540).

Almost surely, 2^243434154233 is an apocalyptic number.

It is an amenable number.

243434154233 is a deficient number, since it is larger than the sum of its proper divisors (12812323927).

243434154233 is a wasteful number, since it uses less digits than its factorization.

243434154233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12812323926.

The product of its digits is 414720, while the sum is 38.

Adding to 243434154233 its reverse (332451434342), we get a palindrome (575885588575).

The spelling of 243434154233 in words is "two hundred forty-three billion, four hundred thirty-four million, one hundred fifty-four thousand, two hundred thirty-three".