1120423813 has 2 divisors, whose sum is σ = 1120423814. Its totient is φ = 1120423812.

The previous prime is 1120423697. The next prime is 1120423859. The reversal of 1120423813 is 3183240211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1119437764 + 986049 = 33458^2 + 993^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1120423813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1120423873) 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, 560211906 + 560211907.

It is an arithmetic number, because the mean of its divisors is an integer number (560211907).

Almost surely, 2^1120423813 is an apocalyptic number.

It is an amenable number.

1120423813 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120423813 is an equidigital number, since it uses as much as digits as its factorization.

1120423813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 1120423813 is about 33472.7323802524. The cubic root of 1120423813 is about 1038.6297947144.

The spelling of 1120423813 in words is "one billion, one hundred twenty million, four hundred twenty-three thousand, eight hundred thirteen".