1227731343049 has 2 divisors, whose sum is σ = 1227731343050. Its totient is φ = 1227731343048.

The previous prime is 1227731343019. The next prime is 1227731343103. The reversal of 1227731343049 is 9403431377221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1140784205625 + 86947137424 = 1068075^2 + 294868^2 .

It is a cyclic number.

It is not a de Polignac number, because 1227731343049 - 2¹⁷ = 1227731211977 is a prime.

It is not a weakly prime, because it can be changed into another prime (1227731343019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613865671524 + 613865671525.

It is an arithmetic number, because the mean of its divisors is an integer number (613865671525).

Almost surely, 2^{1227731343049} is an apocalyptic number.

It is an amenable number.

1227731343049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1227731343049 is an equidigital number, since it uses as much as digits as its factorization.

1227731343049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 762048, while the sum is 46.

The spelling of 1227731343049 in words is "one trillion, two hundred twenty-seven billion, seven hundred thirty-one million, three hundred forty-three thousand, forty-nine".