1242010241 has 4 divisors (see below), whose sum is σ = 1242182484. Its totient is φ = 1241838000.

The previous prime is 1242010207. The next prime is 1242010243. The reversal of 1242010241 is 1420102421.

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 753777025 + 488233216 = 27455^2 + 22096^2 .

It is a cyclic number.

It is not a de Polignac number, because 1242010241 - 2²² = 1237815937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1242010243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74810 + ... + 89891.

It is an arithmetic number, because the mean of its divisors is an integer number (310545621).

Almost surely, 2^1242010241 is an apocalyptic number.

It is an amenable number.

1242010241 is a deficient number, since it is larger than the sum of its proper divisors (172243).

1242010241 is an equidigital number, since it uses as much as digits as its factorization.

1242010241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172242.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1242010241 is about 35242.1656684149. The cubic root of 1242010241 is about 1074.9173157245.

Adding to 1242010241 its reverse (1420102421), we get a palindrome (2662112662).

It can be divided in two parts, 1 and 242010241, that added together give a palindrome (242010242).

The spelling of 1242010241 in words is "one billion, two hundred forty-two million, ten thousand, two hundred forty-one".