243031102 has 4 divisors (see below), whose sum is σ = 364546656. Its totient is φ = 121515550.

The previous prime is 243031081. The next prime is 243031157. The reversal of 243031102 is 201130342.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60757774 + ... + 60757777.

It is an arithmetic number, because the mean of its divisors is an integer number (91136664).

Almost surely, 2^243031102 is an apocalyptic number.

243031102 is a deficient number, since it is larger than the sum of its proper divisors (121515554).

243031102 is a wasteful number, since it uses less digits than its factorization.

243031102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121515553.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 243031102 is about 15589.4548333160. The cubic root of 243031102 is about 624.0517691407.

Adding to 243031102 its reverse (201130342), we get a palindrome (444161444).

The spelling of 243031102 in words is "two hundred forty-three million, thirty-one thousand, one hundred two".