1100680291 has 2 divisors, whose sum is σ = 1100680292. Its totient is φ = 1100680290.

The previous prime is 1100680289. The next prime is 1100680307. The reversal of 1100680291 is 1920860011.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1100680291 - 2¹ = 1100680289 is a prime.

It is a super-2 number, since 2×1100680291² = 2422994205991689362, which contains 22 as substring.

Together with 1100680289, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1100680591) 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, 550340145 + 550340146.

It is an arithmetic number, because the mean of its divisors is an integer number (550340146).

Almost surely, 2^1100680291 is an apocalyptic number.

1100680291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100680291 is an equidigital number, since it uses as much as digits as its factorization.

1100680291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 1100680291 is about 33176.5020910885. The cubic root of 1100680291 is about 1032.4928748968.

The spelling of 1100680291 in words is "one billion, one hundred million, six hundred eighty thousand, two hundred ninety-one".