11056110521 has 2 divisors, whose sum is σ = 11056110522. Its totient is φ = 11056110520.

The previous prime is 11056110487. The next prime is 11056110551. The reversal of 11056110521 is 12501165011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9991002025 + 1065108496 = 99955^2 + 32636^2 .

It is a cyclic number.

It is not a de Polignac number, because 11056110521 - 2¹⁰ = 11056109497 is a prime.

It is not a weakly prime, because it can be changed into another prime (11056110551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5528055260 + 5528055261.

It is an arithmetic number, because the mean of its divisors is an integer number (5528055261).

Almost surely, 2^11056110521 is an apocalyptic number.

It is an amenable number.

11056110521 is a deficient number, since it is larger than the sum of its proper divisors (1).

11056110521 is an equidigital number, since it uses as much as digits as its factorization.

11056110521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 300, while the sum is 23.

Adding to 11056110521 its reverse (12501165011), we get a palindrome (23557275532).

The spelling of 11056110521 in words is "eleven billion, fifty-six million, one hundred ten thousand, five hundred twenty-one".