243431102 has 4 divisors (see below), whose sum is σ = 365146656. Its totient is φ = 121715550.

The previous prime is 243431101. The next prime is 243431113. The reversal of 243431102 is 201134342.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243431101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60857774 + ... + 60857777.

It is an arithmetic number, because the mean of its divisors is an integer number (91286664).

Almost surely, 2^243431102 is an apocalyptic number.

243431102 is a deficient number, since it is larger than the sum of its proper divisors (121715554).

243431102 is a wasteful number, since it uses less digits than its factorization.

243431102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121715553.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 243431102 is about 15602.2787438246. The cubic root of 243431102 is about 624.3939528943.

Adding to 243431102 its reverse (201134342), we get a palindrome (444565444).

The spelling of 243431102 in words is "two hundred forty-three million, four hundred thirty-one thousand, one hundred two".