11412281081 has 2 divisors, whose sum is σ = 11412281082. Its totient is φ = 11412281080.

The previous prime is 11412281039. The next prime is 11412281099. The reversal of 11412281081 is 18018221411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9048765625 + 2363515456 = 95125^2 + 48616^2 .

It is a cyclic number.

It is not a de Polignac number, because 11412281081 - 2¹⁰ = 11412280057 is a prime.

It is a super-2 number, since 2×11412281081² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11412281681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5706140540 + 5706140541.

It is an arithmetic number, because the mean of its divisors is an integer number (5706140541).

Almost surely, 2^11412281081 is an apocalyptic number.

It is an amenable number.

11412281081 is a deficient number, since it is larger than the sum of its proper divisors (1).

11412281081 is an equidigital number, since it uses as much as digits as its factorization.

11412281081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1024, while the sum is 29.

The spelling of 11412281081 in words is "eleven billion, four hundred twelve million, two hundred eighty-one thousand, eighty-one".