11688311 has 2 divisors, whose sum is σ = 11688312. Its totient is φ = 11688310.

The previous prime is 11688293. The next prime is 11688323. The reversal of 11688311 is 11388611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11688311 - 2¹⁰ = 11687287 is a prime.

It is a super-2 number, since 2×11688311² = 273233228065442, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11688331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5844155 + 5844156.

It is an arithmetic number, because the mean of its divisors is an integer number (5844156).

Almost surely, 2^11688311 is an apocalyptic number.

11688311 is a deficient number, since it is larger than the sum of its proper divisors (1).

11688311 is an equidigital number, since it uses as much as digits as its factorization.

11688311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 29.

The square root of 11688311 is about 3418.8171931240. The cubic root of 11688311 is about 226.9432410635.

The spelling of 11688311 in words is "eleven million, six hundred eighty-eight thousand, three hundred eleven".