1244242311209 has 2 divisors, whose sum is σ = 1244242311210. Its totient is φ = 1244242311208.

The previous prime is 1244242311049. The next prime is 1244242311241. The reversal of 1244242311209 is 9021132424421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1053620131600 + 190622179609 = 1026460^2 + 436603^2 .

It is a cyclic number.

It is not a de Polignac number, because 1244242311209 - 2⁸ = 1244242310953 is a prime.

It is not a weakly prime, because it can be changed into another prime (1244242310209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622121155604 + 622121155605.

It is an arithmetic number, because the mean of its divisors is an integer number (622121155605).

Almost surely, 2^{1244242311209} is an apocalyptic number.

It is an amenable number.

1244242311209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1244242311209 is an equidigital number, since it uses as much as digits as its factorization.

1244242311209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 35.

The spelling of 1244242311209 in words is "one trillion, two hundred forty-four billion, two hundred forty-two million, three hundred eleven thousand, two hundred nine".