11144681497 has 2 divisors, whose sum is σ = 11144681498. Its totient is φ = 11144681496.

The previous prime is 11144681467. The next prime is 11144681519. The reversal of 11144681497 is 79418644111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9338516496 + 1806165001 = 96636^2 + 42499^2 .

It is a cyclic number.

It is not a de Polignac number, because 11144681497 - 2¹⁵ = 11144648729 is a prime.

It is a super-2 number, since 2×11144681497² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11144681447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5572340748 + 5572340749.

It is an arithmetic number, because the mean of its divisors is an integer number (5572340749).

Almost surely, 2^11144681497 is an apocalyptic number.

It is an amenable number.

11144681497 is a deficient number, since it is larger than the sum of its proper divisors (1).

11144681497 is an equidigital number, since it uses as much as digits as its factorization.

11144681497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 46.

The spelling of 11144681497 in words is "eleven billion, one hundred forty-four million, six hundred eighty-one thousand, four hundred ninety-seven".