121323401242 has 8 divisors (see below), whose sum is σ = 182061285300. Its totient is φ = 60636306144.

The previous prime is 121323401239. The next prime is 121323401257. The reversal of 121323401242 is 242104323121.

It can be written as a sum of positive squares in 2 ways, for example, as 117607157721 + 3716243521 = 342939^2 + 60961^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12691267 + ... + 12700822.

Almost surely, 2^121323401242 is an apocalyptic number.

121323401242 is a deficient number, since it is larger than the sum of its proper divisors (60737884058).

121323401242 is a wasteful number, since it uses less digits than its factorization.

121323401242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25394480.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 121323401242 its reverse (242104323121), we get a palindrome (363427724363).

The spelling of 121323401242 in words is "one hundred twenty-one billion, three hundred twenty-three million, four hundred one thousand, two hundred forty-two".