11971073 has 2 divisors, whose sum is σ = 11971074. Its totient is φ = 11971072.

The previous prime is 11971039. The next prime is 11971079. The reversal of 11971073 is 37017911.

11971073 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., 11888704 + 82369 = 3448^2 + 287^2 .

It is a cyclic number.

It is not a de Polignac number, because 11971073 - 2²⁰ = 10922497 is a prime.

It is not a weakly prime, because it can be changed into another prime (11971079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5985536 + 5985537.

It is an arithmetic number, because the mean of its divisors is an integer number (5985537).

Almost surely, 2^11971073 is an apocalyptic number.

It is an amenable number.

11971073 is a deficient number, since it is larger than the sum of its proper divisors (1).

11971073 is an equidigital number, since it uses as much as digits as its factorization.

11971073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1323, while the sum is 29.

The square root of 11971073 is about 3459.9238430925. The cubic root of 11971073 is about 228.7587385556.

Adding to 11971073 its reverse (37017911), we get a palindrome (48988984).

The spelling of 11971073 in words is "eleven million, nine hundred seventy-one thousand, seventy-three".