1260344111137 has 2 divisors, whose sum is σ = 1260344111138. Its totient is φ = 1260344111136.

The previous prime is 1260344111129. The next prime is 1260344111231. The reversal of 1260344111137 is 7311114430621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 866256471441 + 394087639696 = 930729^2 + 627764^2 .

It is a cyclic number.

It is not a de Polignac number, because 1260344111137 - 2³ = 1260344111129 is a prime.

It is not a weakly prime, because it can be changed into another prime (1260344111737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 630172055568 + 630172055569.

It is an arithmetic number, because the mean of its divisors is an integer number (630172055569).

Almost surely, 2^{1260344111137} is an apocalyptic number.

It is an amenable number.

1260344111137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1260344111137 is an equidigital number, since it uses as much as digits as its factorization.

1260344111137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 34.

Adding to 1260344111137 its reverse (7311114430621), we get a palindrome (8571458541758).

The spelling of 1260344111137 in words is "one trillion, two hundred sixty billion, three hundred forty-four million, one hundred eleven thousand, one hundred thirty-seven".