11391101 has 2 divisors, whose sum is σ = 11391102. Its totient is φ = 11391100.

The previous prime is 11391097. The next prime is 11391119. The reversal of 11391101 is 10119311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11383876 + 7225 = 3374^2 + 85^2 .

It is a cyclic number.

It is not a de Polignac number, because 11391101 - 2² = 11391097 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11391101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11391151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5695550 + 5695551.

It is an arithmetic number, because the mean of its divisors is an integer number (5695551).

Almost surely, 2^11391101 is an apocalyptic number.

It is an amenable number.

11391101 is a deficient number, since it is larger than the sum of its proper divisors (1).

11391101 is an equidigital number, since it uses as much as digits as its factorization.

11391101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27, while the sum is 17.

The square root of 11391101 is about 3375.0705177818. The cubic root of 11391101 is about 225.0031341127.

The spelling of 11391101 in words is "eleven million, three hundred ninety-one thousand, one hundred one".