242120544425 has 6 divisors (see below), whose sum is σ = 300229475118. Its totient is φ = 193696435520.

The previous prime is 242120544409. The next prime is 242120544437. The reversal of 242120544425 is 524445021242.

It can be written as a sum of positive squares in 3 ways, for example, as 9930521104 + 232190023321 = 99652^2 + 481861^2 .

It is not a de Polignac number, because 242120544425 - 2⁴ = 242120544409 is a prime.

It is a Duffinian 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 5 ways as a sum of consecutive naturals, for example, 4842410864 + ... + 4842410913.

It is an arithmetic number, because the mean of its divisors is an integer number (50038245853).

Almost surely, 2^242120544425 is an apocalyptic number.

242120544425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

242120544425 is a deficient number, since it is larger than the sum of its proper divisors (58108930693).

242120544425 is an equidigital number, since it uses as much as digits as its factorization.

242120544425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9684821787 (or 9684821782 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 35.

Adding to 242120544425 its reverse (524445021242), we get a palindrome (766565565667).

The spelling of 242120544425 in words is "two hundred forty-two billion, one hundred twenty million, five hundred forty-four thousand, four hundred twenty-five".