243245210103 has 24 divisors (see below), whose sum is σ = 401583250848. Its totient is φ = 138984939072.

The previous prime is 243245210099. The next prime is 243245210137. The reversal of 243245210103 is 301012542342.

243245210103 is a `hidden beast` number, since 2 + 4 + 32 + 4 + 521 + 0 + 103 = 666.

It is not a de Polignac number, because 243245210103 - 2² = 243245210099 is a prime.

It is a super-2 number, since 2×243245210103² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243245210003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 570325 + ... + 900977.

It is an arithmetic number, because the mean of its divisors is an integer number (16732635452).

Almost surely, 2^243245210103 is an apocalyptic number.

243245210103 is a deficient number, since it is larger than the sum of its proper divisors (158338040745).

243245210103 is a wasteful number, since it uses less digits than its factorization.

243245210103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342343 (or 342340 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 243245210103 its reverse (301012542342), we get a palindrome (544257752445).

The spelling of 243245210103 in words is "two hundred forty-three billion, two hundred forty-five million, two hundred ten thousand, one hundred three".