11982101 has 2 divisors, whose sum is σ = 11982102. Its totient is φ = 11982100.

The previous prime is 11982071. The next prime is 11982107. The reversal of 11982101 is 10128911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10407076 + 1575025 = 3226^2 + 1255^2 .

It is a cyclic number.

It is not a de Polignac number, because 11982101 - 2⁶ = 11982037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11982107) 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, 5991050 + 5991051.

It is an arithmetic number, because the mean of its divisors is an integer number (5991051).

Almost surely, 2^11982101 is an apocalyptic number.

It is an amenable number.

11982101 is a deficient number, since it is larger than the sum of its proper divisors (1).

11982101 is an equidigital number, since it uses as much as digits as its factorization.

11982101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 23.

The square root of 11982101 is about 3461.5171529259. The cubic root of 11982101 is about 228.8289627561.

The spelling of 11982101 in words is "eleven million, nine hundred eighty-two thousand, one hundred one".