243203212102 has 16 divisors (see below), whose sum is σ = 387733282560. Its totient is φ = 114083058312.

The previous prime is 243203212097. The next prime is 243203212139. The reversal of 243203212102 is 201212302342.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31064458 + ... + 31072285.

It is an arithmetic number, because the mean of its divisors is an integer number (24233330160).

Almost surely, 2^243203212102 is an apocalyptic number.

243203212102 is a deficient number, since it is larger than the sum of its proper divisors (144530070458).

243203212102 is a wasteful number, since it uses less digits than its factorization.

243203212102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62136867.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 243203212102 its reverse (201212302342), we get a palindrome (444415514444).

The spelling of 243203212102 in words is "two hundred forty-three billion, two hundred three million, two hundred twelve thousand, one hundred two".