11939101 has 2 divisors, whose sum is σ = 11939102. Its totient is φ = 11939100.

The previous prime is 11939099. The next prime is 11939107. The reversal of 11939101 is 10193911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11799225 + 139876 = 3435^2 + 374^2 .

It is a cyclic number.

It is not a de Polignac number, because 11939101 - 2¹ = 11939099 is a prime.

Together with 11939099, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11939107) 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, 5969550 + 5969551.

It is an arithmetic number, because the mean of its divisors is an integer number (5969551).

Almost surely, 2^11939101 is an apocalyptic number.

It is an amenable number.

11939101 is a deficient number, since it is larger than the sum of its proper divisors (1).

11939101 is an equidigital number, since it uses as much as digits as its factorization.

11939101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 243, while the sum is 25.

The square root of 11939101 is about 3455.3004210922. The cubic root of 11939101 is about 228.5549028789.

It can be divided in two parts, 1193910 and 1, that added together give a palindrome (1193911).

The spelling of 11939101 in words is "eleven million, nine hundred thirty-nine thousand, one hundred one".