11811090601 has 2 divisors, whose sum is σ = 11811090602. Its totient is φ = 11811090600.

The previous prime is 11811090583. The next prime is 11811090659. The reversal of 11811090601 is 10609011811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9146053225 + 2665037376 = 95635^2 + 51624^2 .

It is a cyclic number.

It is not a de Polignac number, because 11811090601 - 2²⁹ = 11274219689 is a prime.

It is a super-2 number, since 2×11811090601² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11811090601.

It is not a weakly prime, because it can be changed into another prime (11811090671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5905545300 + 5905545301.

It is an arithmetic number, because the mean of its divisors is an integer number (5905545301).

Almost surely, 2^11811090601 is an apocalyptic number.

It is an amenable number.

11811090601 is a deficient number, since it is larger than the sum of its proper divisors (1).

11811090601 is an equidigital number, since it uses as much as digits as its factorization.

11811090601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 28.

The spelling of 11811090601 in words is "eleven billion, eight hundred eleven million, ninety thousand, six hundred one".