1244350378321 has 2 divisors, whose sum is σ = 1244350378322. Its totient is φ = 1244350378320.

The previous prime is 1244350378301. The next prime is 1244350378351. The reversal of 1244350378321 is 1238730534421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1235332217025 + 9018161296 = 1111455^2 + 94964^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1244350378321 is a prime.

It is not a weakly prime, because it can be changed into another prime (1244350378301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622175189160 + 622175189161.

It is an arithmetic number, because the mean of its divisors is an integer number (622175189161).

Almost surely, 2^{1244350378321} is an apocalyptic number.

It is an amenable number.

1244350378321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1244350378321 is an equidigital number, since it uses as much as digits as its factorization.

1244350378321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 1244350378321 in words is "one trillion, two hundred forty-four billion, three hundred fifty million, three hundred seventy-eight thousand, three hundred twenty-one".