231244123142 has 8 divisors (see below), whose sum is σ = 356240946576. Its totient is φ = 112497140952.

The previous prime is 231244123127. The next prime is 231244123147. The reversal of 231244123142 is 241321442132.

231244123142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231244123147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1562460218 + ... + 1562460365.

It is an arithmetic number, because the mean of its divisors is an integer number (44530118322).

Almost surely, 2^231244123142 is an apocalyptic number.

231244123142 is a deficient number, since it is larger than the sum of its proper divisors (124996823434).

231244123142 is a wasteful number, since it uses less digits than its factorization.

231244123142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3124920622.

The product of its digits is 9216, while the sum is 29.

Adding to 231244123142 its reverse (241321442132), we get a palindrome (472565565274).

The spelling of 231244123142 in words is "two hundred thirty-one billion, two hundred forty-four million, one hundred twenty-three thousand, one hundred forty-two".