11661101 has 2 divisors, whose sum is σ = 11661102. Its totient is φ = 11661100.

The previous prime is 11661073. The next prime is 11661119. The reversal of 11661101 is 10116611.

11661101 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9616201 + 2044900 = 3101^2 + 1430^2 .

It is a cyclic number.

It is not a de Polignac number, because 11661101 - 2⁶ = 11661037 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11661101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11661121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5830550 + 5830551.

It is an arithmetic number, because the mean of its divisors is an integer number (5830551).

Almost surely, 2^11661101 is an apocalyptic number.

It is an amenable number.

11661101 is a deficient number, since it is larger than the sum of its proper divisors (1).

11661101 is an equidigital number, since it uses as much as digits as its factorization.

11661101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 11661101 is about 3414.8354279526. The cubic root of 11661101 is about 226.7669987868.

Adding to 11661101 its reverse (10116611), we get a palindrome (21777712).

The spelling of 11661101 in words is "eleven million, six hundred sixty-one thousand, one hundred one".