243220102 has 16 divisors (see below), whose sum is σ = 386971200. Its totient is φ = 114327720.

The previous prime is 243220099. The next prime is 243220189. The reversal of 243220102 is 201022342.

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, 19452 + ... + 29407.

It is an arithmetic number, because the mean of its divisors is an integer number (24185700).

Almost surely, 2^243220102 is an apocalyptic number.

243220102 is a deficient number, since it is larger than the sum of its proper divisors (143751098).

243220102 is a wasteful number, since it uses less digits than its factorization.

243220102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49011.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 243220102 is about 15595.5154451528. The cubic root of 243220102 is about 624.2134977178.

Adding to 243220102 its reverse (201022342), we get a palindrome (444242444).

It can be divided in two parts, 2432 and 20102, that multiplied together give a square (48888064 = 6992²).

The spelling of 243220102 in words is "two hundred forty-three million, two hundred twenty thousand, one hundred two".