11053351021 has 2 divisors, whose sum is σ = 11053351022. Its totient is φ = 11053351020.

The previous prime is 11053351013. The next prime is 11053351039. The reversal of 11053351021 is 12015335011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10860557796 + 192793225 = 104214^2 + 13885^2 .

It is an emirp because it is prime and its reverse (12015335011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11053351021 - 2³ = 11053351013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11053350983 and 11053351001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11053351121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5526675510 + 5526675511.

It is an arithmetic number, because the mean of its divisors is an integer number (5526675511).

Almost surely, 2^11053351021 is an apocalyptic number.

It is an amenable number.

11053351021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11053351021 is an equidigital number, since it uses as much as digits as its factorization.

11053351021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 450, while the sum is 22.

Adding to 11053351021 its reverse (12015335011), we get a palindrome (23068686032).

The spelling of 11053351021 in words is "eleven billion, fifty-three million, three hundred fifty-one thousand, twenty-one".