10661311 has 2 divisors, whose sum is σ = 10661312. Its totient is φ = 10661310.

The previous prime is 10661297. The next prime is 10661327. The reversal of 10661311 is 11316601.

10661311 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10661311 - 2⁵ = 10661279 is a prime.

It is a super-2 number, since 2×10661311² = 227327104477442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10661011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5330655 + 5330656.

It is an arithmetic number, because the mean of its divisors is an integer number (5330656).

Almost surely, 2^10661311 is an apocalyptic number.

10661311 is a deficient number, since it is larger than the sum of its proper divisors (1).

10661311 is an equidigital number, since it uses as much as digits as its factorization.

10661311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 10661311 is about 3265.1663051061. The cubic root of 10661311 is about 220.0916353800.

Adding to 10661311 its reverse (11316601), we get a palindrome (21977912).

The spelling of 10661311 in words is "ten million, six hundred sixty-one thousand, three hundred eleven".