231314121442 has 16 divisors (see below), whose sum is σ = 367394471712. Its totient is φ = 108849787200.

The previous prime is 231314121431. The next prime is 231314121457. The reversal of 231314121442 is 244121413132.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 231314121442.

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, 980317 + ... + 1193167.

It is an arithmetic number, because the mean of its divisors is an integer number (22962154482).

Almost surely, 2^231314121442 is an apocalyptic number.

231314121442 is a deficient number, since it is larger than the sum of its proper divisors (136080350270).

231314121442 is a wasteful number, since it uses less digits than its factorization.

231314121442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244833.

The product of its digits is 4608, while the sum is 28.

Adding to 231314121442 its reverse (244121413132), we get a palindrome (475435534574).

The spelling of 231314121442 in words is "two hundred thirty-one billion, three hundred fourteen million, one hundred twenty-one thousand, four hundred forty-two".