1241242121 has 8 divisors (see below), whose sum is σ = 1419085824. Its totient is φ = 1063529280.

The previous prime is 1241242117. The next prime is 1241242153. The reversal of 1241242121 is 1212421421.

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 1241242121 - 2² = 1241242117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1241242093 and 1241242102.

It is not an unprimeable number, because it can be changed into a prime (1241242111) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 11465 + ... + 51126.

It is an arithmetic number, because the mean of its divisors is an integer number (177385728).

Almost surely, 2^1241242121 is an apocalyptic number.

It is an amenable number.

1241242121 is a deficient number, since it is larger than the sum of its proper divisors (177843703).

1241242121 is an equidigital number, since it uses as much as digits as its factorization.

1241242121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65431.

The product of its digits is 256, while the sum is 20.

The square root of 1241242121 is about 35231.2662417915. The cubic root of 1241242121 is about 1074.6956761785.

Adding to 1241242121 its reverse (1212421421), we get a palindrome (2453663542).

The spelling of 1241242121 in words is "one billion, two hundred forty-one million, two hundred forty-two thousand, one hundred twenty-one".