11931061 has 2 divisors, whose sum is σ = 11931062. Its totient is φ = 11931060.

The previous prime is 11930999. The next prime is 11931079. The reversal of 11931061 is 16013911.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11902500 + 28561 = 3450^2 + 169^2 .

It is a cyclic number.

It is not a de Polignac number, because 11931061 - 2¹¹ = 11929013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11931461) 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, 5965530 + 5965531.

It is an arithmetic number, because the mean of its divisors is an integer number (5965531).

Almost surely, 2^11931061 is an apocalyptic number.

It is an amenable number.

11931061 is a deficient number, since it is larger than the sum of its proper divisors (1).

11931061 is an equidigital number, since it uses as much as digits as its factorization.

11931061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 22.

The square root of 11931061 is about 3454.1367952066. The cubic root of 11931061 is about 228.5035870648.

Adding to 11931061 its reverse (16013911), we get a palindrome (27944972).

The spelling of 11931061 in words is "eleven million, nine hundred thirty-one thousand, sixty-one".