1120042813 has 2 divisors, whose sum is σ = 1120042814. Its totient is φ = 1120042812.

The previous prime is 1120042811. The next prime is 1120042823. The reversal of 1120042813 is 3182400211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 944824644 + 175218169 = 30738^2 + 13237^2 .

It is a cyclic number.

It is not a de Polignac number, because 1120042813 - 2¹ = 1120042811 is a prime.

Together with 1120042811, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1120042811) 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, 560021406 + 560021407.

It is an arithmetic number, because the mean of its divisors is an integer number (560021407).

Almost surely, 2^1120042813 is an apocalyptic number.

It is an amenable number.

1120042813 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120042813 is an equidigital number, since it uses as much as digits as its factorization.

1120042813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 1120042813 is about 33467.0406967811. The cubic root of 1120042813 is about 1038.5120527165.

The spelling of 1120042813 in words is "one billion, one hundred twenty million, forty-two thousand, eight hundred thirteen".