11933081 has 2 divisors, whose sum is σ = 11933082. Its totient is φ = 11933080.

The previous prime is 11933071. The next prime is 11933087. The reversal of 11933081 is 18033911.

11933081 is digitally balanced in base 2, 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., 7590025 + 4343056 = 2755^2 + 2084^2 .

It is a cyclic number.

It is not a de Polignac number, because 11933081 - 2⁶ = 11933017 is a prime.

It is a super-2 number, since 2×11933081² = 284796844305122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11933081.

It is not a weakly prime, because it can be changed into another prime (11933087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5966540 + 5966541.

It is an arithmetic number, because the mean of its divisors is an integer number (5966541).

Almost surely, 2^11933081 is an apocalyptic number.

It is an amenable number.

11933081 is a deficient number, since it is larger than the sum of its proper divisors (1).

11933081 is an equidigital number, since it uses as much as digits as its factorization.

11933081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 11933081 is about 3454.4291858424. The cubic root of 11933081 is about 228.5164820119.

Adding to 11933081 its reverse (18033911), we get a palindrome (29966992).

The spelling of 11933081 in words is "eleven million, nine hundred thirty-three thousand, eighty-one".