1311033318929 has 2 divisors, whose sum is σ = 1311033318930. Its totient is φ = 1311033318928.

The previous prime is 1311033318877. The next prime is 1311033318937. The reversal of 1311033318929 is 9298133301131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 663040518529 + 647992800400 = 814273^2 + 804980^2 .

It is a cyclic number.

It is not a de Polignac number, because 1311033318929 - 2¹⁶ = 1311033253393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1311033318929.

It is not a weakly prime, because it can be changed into another prime (1311033318029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655516659464 + 655516659465.

It is an arithmetic number, because the mean of its divisors is an integer number (655516659465).

Almost surely, 2^{1311033318929} is an apocalyptic number.

It is an amenable number.

1311033318929 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311033318929 is an equidigital number, since it uses as much as digits as its factorization.

1311033318929 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 44.

The spelling of 1311033318929 in words is "one trillion, three hundred eleven billion, thirty-three million, three hundred eighteen thousand, nine hundred twenty-nine".