243234423455 has 16 divisors (see below), whose sum is σ = 294023196000. Its totient is φ = 193161240960.

The previous prime is 243234423449. The next prime is 243234423463. The reversal of 243234423455 is 554324432342.

It is not a de Polignac number, because 243234423455 - 2⁶ = 243234423391 is a prime.

It is a super-3 number, since 3×243234423455³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1105325 + ... + 1306985.

It is an arithmetic number, because the mean of its divisors is an integer number (18376449750).

Almost surely, 2^243234423455 is an apocalyptic number.

243234423455 is a deficient number, since it is larger than the sum of its proper divisors (50788772545).

243234423455 is a wasteful number, since it uses less digits than its factorization.

243234423455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203434.

The product of its digits is 1382400, while the sum is 41.

Adding to 243234423455 its reverse (554324432342), we get a palindrome (797558855797).

The spelling of 243234423455 in words is "two hundred forty-three billion, two hundred thirty-four million, four hundred twenty-three thousand, four hundred fifty-five".