1106213281 has 2 divisors, whose sum is σ = 1106213282. Its totient is φ = 1106213280.

The previous prime is 1106213279. The next prime is 1106213351. The reversal of 1106213281 is 1823126011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1094551056 + 11662225 = 33084^2 + 3415^2 .

It is a cyclic number.

It is not a de Polignac number, because 1106213281 - 2¹ = 1106213279 is a prime.

It is a super-2 number, since 2×1106213281² = 2447415646121569922, which contains 22 as substring.

Together with 1106213279, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1106213201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 553106640 + 553106641.

It is an arithmetic number, because the mean of its divisors is an integer number (553106641).

Almost surely, 2^1106213281 is an apocalyptic number.

It is an amenable number.

1106213281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1106213281 is an equidigital number, since it uses as much as digits as its factorization.

1106213281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 1106213281 is about 33259.7847407346. The cubic root of 1106213281 is about 1034.2200573082.

Adding to 1106213281 its reverse (1823126011), we get a palindrome (2929339292).

The spelling of 1106213281 in words is "one billion, one hundred six million, two hundred thirteen thousand, two hundred eighty-one".