231103242 has 24 divisors (see below), whose sum is σ = 512370144. Its totient is φ = 75242664.

The previous prime is 231103231. The next prime is 231103247. The reversal of 231103242 is 242301132.

231103242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (231103247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 148518 + ... + 150065.

It is an arithmetic number, because the mean of its divisors is an integer number (21348756).

Almost surely, 2^231103242 is an apocalyptic number.

231103242 is an abundant number, since it is smaller than the sum of its proper divisors (281266902).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231103242 is a wasteful number, since it uses less digits than its factorization.

231103242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298634 (or 298631 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 231103242 is about 15202.0801866060. The cubic root of 231103242 is about 613.6706403779.

Adding to 231103242 its reverse (242301132), we get a palindrome (473404374).

The spelling of 231103242 in words is "two hundred thirty-one million, one hundred three thousand, two hundred forty-two".