11051474881 has 2 divisors, whose sum is σ = 11051474882. Its totient is φ = 11051474880.

The previous prime is 11051474851. The next prime is 11051474893. The reversal of 11051474881 is 18847415011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6821273281 + 4230201600 = 82591^2 + 65040^2 .

It is a cyclic number.

It is not a de Polignac number, because 11051474881 - 2¹¹ = 11051472833 is a prime.

It is a super-2 number, since 2×11051474881² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11051474851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5525737440 + 5525737441.

It is an arithmetic number, because the mean of its divisors is an integer number (5525737441).

Almost surely, 2^11051474881 is an apocalyptic number.

It is an amenable number.

11051474881 is a deficient number, since it is larger than the sum of its proper divisors (1).

11051474881 is an equidigital number, since it uses as much as digits as its factorization.

11051474881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35840, while the sum is 40.

Adding to 11051474881 its reverse (18847415011), we get a palindrome (29898889892).

The spelling of 11051474881 in words is "eleven billion, fifty-one million, four hundred seventy-four thousand, eight hundred eighty-one".