11027381 has 2 divisors, whose sum is σ = 11027382. Its totient is φ = 11027380.

The previous prime is 11027371. The next prime is 11027389. The reversal of 11027381 is 18372011.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9891025 + 1136356 = 3145^2 + 1066^2 .

It is a cyclic number.

It is not a de Polignac number, because 11027381 - 2¹⁰ = 11026357 is a prime.

It is a super-2 number, since 2×11027381² = 243206263438322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11027389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5513690 + 5513691.

It is an arithmetic number, because the mean of its divisors is an integer number (5513691).

Almost surely, 2^11027381 is an apocalyptic number.

It is an amenable number.

11027381 is a deficient number, since it is larger than the sum of its proper divisors (1).

11027381 is an equidigital number, since it uses as much as digits as its factorization.

11027381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 11027381 is about 3320.7500658737. The cubic root of 11027381 is about 222.5823858525.

Adding to 11027381 its reverse (18372011), we get a palindrome (29399392).

The spelling of 11027381 in words is "eleven million, twenty-seven thousand, three hundred eighty-one".