1084121011 has 2 divisors, whose sum is σ = 1084121012. Its totient is φ = 1084121010.

The previous prime is 1084121009. The next prime is 1084121069. The reversal of 1084121011 is 1101214801.

It is a weak prime.

It is an emirp because it is prime and its reverse (1101214801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1084121011 - 2¹ = 1084121009 is a prime.

Together with 1084121009, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1084121011.

It is not a weakly prime, because it can be changed into another prime (1084121711) 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, 542060505 + 542060506.

It is an arithmetic number, because the mean of its divisors is an integer number (542060506).

Almost surely, 2^1084121011 is an apocalyptic number.

1084121011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1084121011 is an equidigital number, since it uses as much as digits as its factorization.

1084121011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 19.

The square root of 1084121011 is about 32925.9929387103. The cubic root of 1084121011 is about 1027.2888801645.

Adding to 1084121011 its reverse (1101214801), we get a palindrome (2185335812).

The spelling of 1084121011 in words is "one billion, eighty-four million, one hundred twenty-one thousand, eleven".