Adding to 231442102 its reverse (201244132), we get a palindrome (432686234).
It is a sphenic number, since it is the product of 3 distinct primes.
It is a self number, because there is not a number n which added to its sum of digits gives 231442102.
It is a congruent number.
Almost surely, 2231442102 is an apocalyptic number.
231442102 is a wasteful number, since it uses less digits than its factorization.
231442102 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 548654.
The square root of 231442102 is about 15213.2212893917. The cubic root of 231442102 is about 613.9704297388.
The spelling of 231442102 in words is "two hundred thirty-one million, four hundred forty-two thousand, one hundred two".