11155354493 has 2 divisors, whose sum is σ = 11155354494. Its totient is φ = 11155354492.

The previous prime is 11155354489. The next prime is 11155354517. The reversal of 11155354493 is 39445355111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9689842969 + 1465511524 = 98437^2 + 38282^2 .

It is a cyclic number.

It is not a de Polignac number, because 11155354493 - 2² = 11155354489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11155354493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11155354403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5577677246 + 5577677247.

It is an arithmetic number, because the mean of its divisors is an integer number (5577677247).

Almost surely, 2^11155354493 is an apocalyptic number.

It is an amenable number.

11155354493 is a deficient number, since it is larger than the sum of its proper divisors (1).

11155354493 is an equidigital number, since it uses as much as digits as its factorization.

11155354493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 162000, while the sum is 41.

The spelling of 11155354493 in words is "eleven billion, one hundred fifty-five million, three hundred fifty-four thousand, four hundred ninety-three".