11011005641 has 2 divisors, whose sum is σ = 11011005642. Its totient is φ = 11011005640.

The previous prime is 11011005637. The next prime is 11011005653. The reversal of 11011005641 is 14650011011.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7225680016 + 3785325625 = 85004^2 + 61525^2 .

It is a cyclic number.

It is not a de Polignac number, because 11011005641 - 2² = 11011005637 is a prime.

It is a super-2 number, since 2×11011005641² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11011005631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505502820 + 5505502821.

It is an arithmetic number, because the mean of its divisors is an integer number (5505502821).

Almost surely, 2^11011005641 is an apocalyptic number.

It is an amenable number.

11011005641 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011005641 is an equidigital number, since it uses as much as digits as its factorization.

11011005641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 20.

Adding to 11011005641 its reverse (14650011011), we get a palindrome (25661016652).

The spelling of 11011005641 in words is "eleven billion, eleven million, five thousand, six hundred forty-one".