243234102135533 has 4 divisors (see below), whose sum is σ = 243235486501728. Its totient is φ = 243232717769340.

The previous prime is 243234102135499. The next prime is 243234102135547. The reversal of 243234102135533 is 335531201432342.

243234102135533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 243234102135533 - 2¹⁰ = 243234102134509 is a prime.

It is a super-2 number, since 2×243234102135533² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243234102132533) 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, 691919513 + ... + 692270958.

It is an arithmetic number, because the mean of its divisors is an integer number (60808871625432).

Almost surely, 2^{243234102135533} is an apocalyptic number.

It is an amenable number.

243234102135533 is a deficient number, since it is larger than the sum of its proper divisors (1384366195).

243234102135533 is a wasteful number, since it uses less digits than its factorization.

243234102135533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1384366194.

The product of its (nonzero) digits is 777600, while the sum is 41.

Adding to 243234102135533 its reverse (335531201432342), we get a palindrome (578765303567875).

The spelling of 243234102135533 in words is "two hundred forty-three trillion, two hundred thirty-four billion, one hundred two million, one hundred thirty-five thousand, five hundred thirty-three".