1244321278241 has 2 divisors, whose sum is σ = 1244321278242. Its totient is φ = 1244321278240.

The previous prime is 1244321278199. The next prime is 1244321278247. The reversal of 1244321278241 is 1428721234421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1193829390625 + 50491887616 = 1092625^2 + 224704^2 .

It is a cyclic number.

It is not a de Polignac number, because 1244321278241 - 2¹⁸ = 1244321016097 is a prime.

It is a super-2 number, since 2×1244321278241² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1244321278247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622160639120 + 622160639121.

It is an arithmetic number, because the mean of its divisors is an integer number (622160639121).

Almost surely, 2^{1244321278241} is an apocalyptic number.

It is an amenable number.

1244321278241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1244321278241 is an equidigital number, since it uses as much as digits as its factorization.

1244321278241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172032, while the sum is 41.

The spelling of 1244321278241 in words is "one trillion, two hundred forty-four billion, three hundred twenty-one million, two hundred seventy-eight thousand, two hundred forty-one".