1242241442321 has 48 divisors (see below), whose sum is σ = 1426575381504. Its totient is φ = 1079678160000.

The previous prime is 1242241442311. The next prime is 1242241442347. The reversal of 1242241442321 is 1232441422421.

It is not a de Polignac number, because 1242241442321 - 2⁶ = 1242241442257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1242241442311) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 184497071 + ... + 184503803.

It is an arithmetic number, because the mean of its divisors is an integer number (29720320448).

Almost surely, 2^{1242241442321} is an apocalyptic number.

1242241442321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1242241442321 is a deficient number, since it is larger than the sum of its proper divisors (184333939183).

1242241442321 is a wasteful number, since it uses less digits than its factorization.

1242241442321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7374 (or 7363 counting only the distinct ones).

The product of its digits is 24576, while the sum is 32.

Adding to 1242241442321 its reverse (1232441422421), we get a palindrome (2474682864742).

The spelling of 1242241442321 in words is "one trillion, two hundred forty-two billion, two hundred forty-one million, four hundred forty-two thousand, three hundred twenty-one".