243121243414 has 32 divisors (see below), whose sum is σ = 418379547456. Its totient is φ = 103795292160.

The previous prime is 243121243397. The next prime is 243121243447. The reversal of 243121243414 is 414342121342.

It is a happy number.

243121243414 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5550142 + ... + 5593774.

It is an arithmetic number, because the mean of its divisors is an integer number (13074360858).

Almost surely, 2^243121243414 is an apocalyptic number.

243121243414 is a deficient number, since it is larger than the sum of its proper divisors (175258304042).

243121243414 is a wasteful number, since it uses less digits than its factorization.

243121243414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45160.

The product of its digits is 18432, while the sum is 31.

Adding to 243121243414 its reverse (414342121342), we get a palindrome (657463364756).

The spelling of 243121243414 in words is "two hundred forty-three billion, one hundred twenty-one million, two hundred forty-three thousand, four hundred fourteen".