1081291711 has 2 divisors, whose sum is σ = 1081291712. Its totient is φ = 1081291710.

The previous prime is 1081291667. The next prime is 1081291727. The reversal of 1081291711 is 1171921801.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (1171921801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1081291711 - 2¹¹ = 1081289663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1081291741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540645855 + 540645856.

It is an arithmetic number, because the mean of its divisors is an integer number (540645856).

Almost surely, 2^1081291711 is an apocalyptic number.

1081291711 is a deficient number, since it is larger than the sum of its proper divisors (1).

1081291711 is an equidigital number, since it uses as much as digits as its factorization.

1081291711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 31.

The square root of 1081291711 is about 32883.0003345194. Note that the first 3 decimals coincide. The cubic root of 1081291711 is about 1026.3944411043.

The spelling of 1081291711 in words is "one billion, eighty-one million, two hundred ninety-one thousand, seven hundred eleven".