11961113 has 2 divisors, whose sum is σ = 11961114. Its totient is φ = 11961112.

The previous prime is 11961091. The next prime is 11961119. The reversal of 11961113 is 31116911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7912969 + 4048144 = 2813^2 + 2012^2 .

It is a cyclic number.

It is not a de Polignac number, because 11961113 - 2⁶ = 11961049 is a prime.

It is not a weakly prime, because it can be changed into another prime (11961119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5980556 + 5980557.

It is an arithmetic number, because the mean of its divisors is an integer number (5980557).

Almost surely, 2^11961113 is an apocalyptic number.

It is an amenable number.

11961113 is a deficient number, since it is larger than the sum of its proper divisors (1).

11961113 is an equidigital number, since it uses as much as digits as its factorization.

11961113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 162, while the sum is 23.

The square root of 11961113 is about 3458.4842055444. The cubic root of 11961113 is about 228.6952781005.

The spelling of 11961113 in words is "eleven million, nine hundred sixty-one thousand, one hundred thirteen".