11103122881 has 2 divisors, whose sum is σ = 11103122882. Its totient is φ = 11103122880.

The previous prime is 11103122869. The next prime is 11103122939. The reversal of 11103122881 is 18822130111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10840974400 + 262148481 = 104120^2 + 16191^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11103122881 is a prime.

It is a super-2 number, since 2×11103122881² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11103122831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5551561440 + 5551561441.

It is an arithmetic number, because the mean of its divisors is an integer number (5551561441).

Almost surely, 2^11103122881 is an apocalyptic number.

It is an amenable number.

11103122881 is a deficient number, since it is larger than the sum of its proper divisors (1).

11103122881 is an equidigital number, since it uses as much as digits as its factorization.

11103122881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 28.

Adding to 11103122881 its reverse (18822130111), we get a palindrome (29925252992).

The spelling of 11103122881 in words is "eleven billion, one hundred three million, one hundred twenty-two thousand, eight hundred eighty-one".