1100130643 has 2 divisors, whose sum is σ = 1100130644. Its totient is φ = 1100130642.

The previous prime is 1100130637. The next prime is 1100130667. The reversal of 1100130643 is 3460310011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1100130643 - 2⁵ = 1100130611 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1100130643.

It is not a weakly prime, because it can be changed into another prime (1100130943) 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, 550065321 + 550065322.

It is an arithmetic number, because the mean of its divisors is an integer number (550065322).

Almost surely, 2^1100130643 is an apocalyptic number.

1100130643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100130643 is an equidigital number, since it uses as much as digits as its factorization.

1100130643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1100130643 is about 33168.2173624089. The cubic root of 1100130643 is about 1032.3209805571.

Adding to 1100130643 its reverse (3460310011), we get a palindrome (4560440654).

The spelling of 1100130643 in words is "one billion, one hundred million, one hundred thirty thousand, six hundred forty-three".