1081102691 has 2 divisors, whose sum is σ = 1081102692. Its totient is φ = 1081102690.

The previous prime is 1081102651. The next prime is 1081102697. The reversal of 1081102691 is 1962011801.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1081102691 - 2¹⁰ = 1081101667 is a prime.

It is not a weakly prime, because it can be changed into another prime (1081102697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540551345 + 540551346.

It is an arithmetic number, because the mean of its divisors is an integer number (540551346).

Almost surely, 2^1081102691 is an apocalyptic number.

1081102691 is a deficient number, since it is larger than the sum of its proper divisors (1).

1081102691 is an equidigital number, since it uses as much as digits as its factorization.

1081102691 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 29.

The square root of 1081102691 is about 32880.1260794420. The cubic root of 1081102691 is about 1026.3346298060.

The spelling of 1081102691 in words is "one billion, eighty-one million, one hundred two thousand, six hundred ninety-one".