243235242105 has 32 divisors (see below), whose sum is σ = 390104467200. Its totient is φ = 129416324352.

The previous prime is 243235242101. The next prime is 243235242109. The reversal of 243235242105 is 501242532342.

It is an interprime number because it is at equal distance from previous prime (243235242101) and next prime (243235242109).

It is not a de Polignac number, because 243235242105 - 2² = 243235242101 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243235242101) 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, 23732092 + ... + 23742338.

It is an arithmetic number, because the mean of its divisors is an integer number (12190764600).

Almost surely, 2^243235242105 is an apocalyptic number.

It is an amenable number.

243235242105 is a deficient number, since it is larger than the sum of its proper divisors (146869225095).

243235242105 is a wasteful number, since it uses less digits than its factorization.

243235242105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13873.

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 243235242105 its reverse (501242532342), we get a palindrome (744477774447).

The spelling of 243235242105 in words is "two hundred forty-three billion, two hundred thirty-five million, two hundred forty-two thousand, one hundred five".