242123052251 has 8 divisors (see below), whose sum is σ = 247762360560. Its totient is φ = 236484132192.

The previous prime is 242123052239. The next prime is 242123052253. The reversal of 242123052251 is 152250321242.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 242123052251 - 2¹⁴ = 242123035867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242123052253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1447601 + ... + 1606173.

It is an arithmetic number, because the mean of its divisors is an integer number (30970295070).

Almost surely, 2^242123052251 is an apocalyptic number.

242123052251 is a deficient number, since it is larger than the sum of its proper divisors (5639308309).

242123052251 is a wasteful number, since it uses less digits than its factorization.

242123052251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194125.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 242123052251 its reverse (152250321242), we get a palindrome (394373373493).

The spelling of 242123052251 in words is "two hundred forty-two billion, one hundred twenty-three million, fifty-two thousand, two hundred fifty-one".