1155010216813 has 2 divisors, whose sum is σ = 1155010216814. Its totient is φ = 1155010216812.

The previous prime is 1155010216727. The next prime is 1155010216817. The reversal of 1155010216813 is 3186120105511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 714224433924 + 440785782889 = 845118^2 + 663917^2 .

It is a cyclic number.

It is not a de Polignac number, because 1155010216813 - 2²⁵ = 1154976662381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1155010216817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577505108406 + 577505108407.

It is an arithmetic number, because the mean of its divisors is an integer number (577505108407).

Almost surely, 2^{1155010216813} is an apocalyptic number.

It is an amenable number.

1155010216813 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155010216813 is an equidigital number, since it uses as much as digits as its factorization.

1155010216813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 34.

The spelling of 1155010216813 in words is "one trillion, one hundred fifty-five billion, ten million, two hundred sixteen thousand, eight hundred thirteen".