243143240102 has 16 divisors (see below), whose sum is σ = 421500322080. Its totient is φ = 103033411008.

The previous prime is 243143240099. The next prime is 243143240117. The reversal of 243143240102 is 201042341342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97568273 + ... + 97570764.

It is an arithmetic number, because the mean of its divisors is an integer number (26343770130).

Almost surely, 2^243143240102 is an apocalyptic number.

243143240102 is a deficient number, since it is larger than the sum of its proper divisors (178357081978).

243143240102 is a wasteful number, since it uses less digits than its factorization.

243143240102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195139135.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 243143240102 its reverse (201042341342), we get a palindrome (444185581444).

The spelling of 243143240102 in words is "two hundred forty-three billion, one hundred forty-three million, two hundred forty thousand, one hundred two".