1244036129251 has 2 divisors, whose sum is σ = 1244036129252. Its totient is φ = 1244036129250.

The previous prime is 1244036129249. The next prime is 1244036129309. The reversal of 1244036129251 is 1529216304421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1244036129251 - 2¹ = 1244036129249 is a prime.

Together with 1244036129249, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1244036129551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622018064625 + 622018064626.

It is an arithmetic number, because the mean of its divisors is an integer number (622018064626).

Almost surely, 2^{1244036129251} is an apocalyptic number.

1244036129251 is a deficient number, since it is larger than the sum of its proper divisors (1).

1244036129251 is an equidigital number, since it uses as much as digits as its factorization.

1244036129251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 1244036129251 in words is "one trillion, two hundred forty-four billion, thirty-six million, one hundred twenty-nine thousand, two hundred fifty-one".