11155026455213 has 2 divisors, whose sum is σ = 11155026455214. Its totient is φ = 11155026455212.

The previous prime is 11155026455191. The next prime is 11155026455231. The reversal of 11155026455213 is 31255462055111.

Together with next prime (11155026455231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10067434018084 + 1087592437129 = 3172922^2 + 1042877^2 .

It is a cyclic number.

It is not a de Polignac number, because 11155026455213 - 2²² = 11155022260909 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11155016455213) 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, 5577513227606 + 5577513227607.

It is an arithmetic number, because the mean of its divisors is an integer number (5577513227607).

Almost surely, 2^{11155026455213} is an apocalyptic number.

It is an amenable number.

11155026455213 is a deficient number, since it is larger than the sum of its proper divisors (1).

11155026455213 is an equidigital number, since it uses as much as digits as its factorization.

11155026455213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180000, while the sum is 41.

The spelling of 11155026455213 in words is "eleven trillion, one hundred fifty-five billion, twenty-six million, four hundred fifty-five thousand, two hundred thirteen".