242113121045 has 4 divisors (see below), whose sum is σ = 290535745260. Its totient is φ = 193690496832.

The previous prime is 242113121023. The next prime is 242113121059. The reversal of 242113121045 is 540121311242.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 55619562244 + 186493558801 = 235838^2 + 431849^2 .

It is a cyclic number.

It is not a de Polignac number, because 242113121045 - 2²⁴ = 242096343829 is a prime.

It is a congruent number.

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, 24211312100 + ... + 24211312109.

It is an arithmetic number, because the mean of its divisors is an integer number (72633936315).

Almost surely, 2^242113121045 is an apocalyptic number.

It is an amenable number.

242113121045 is a deficient number, since it is larger than the sum of its proper divisors (48422624215).

242113121045 is an equidigital number, since it uses as much as digits as its factorization.

242113121045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48422624214.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 242113121045 its reverse (540121311242), we get a palindrome (782234432287).

The spelling of 242113121045 in words is "two hundred forty-two billion, one hundred thirteen million, one hundred twenty-one thousand, forty-five".