242171125633 has 4 divisors (see below), whose sum is σ = 246141144148. Its totient is φ = 238201107120.

The previous prime is 242171125621. The next prime is 242171125663. The reversal of 242171125633 is 336521171242.

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 112364403264 + 129806722369 = 335208^2 + 360287^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242171125633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242171125592 and 242171125601.

It is not an unprimeable number, because it can be changed into a prime (242171125663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1985009166 + ... + 1985009287.

It is an arithmetic number, because the mean of its divisors is an integer number (61535286037).

Almost surely, 2^242171125633 is an apocalyptic number.

It is an amenable number.

242171125633 is a deficient number, since it is larger than the sum of its proper divisors (3970018515).

242171125633 is an equidigital number, since it uses as much as digits as its factorization.

242171125633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3970018514.

The product of its digits is 60480, while the sum is 37.

Adding to 242171125633 its reverse (336521171242), we get a palindrome (578692296875).

The spelling of 242171125633 in words is "two hundred forty-two billion, one hundred seventy-one million, one hundred twenty-five thousand, six hundred thirty-three".