120128803 has 2 divisors, whose sum is σ = 120128804. Its totient is φ = 120128802.

The previous prime is 120128731. The next prime is 120128807. The reversal of 120128803 is 308821021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120128803 - 2⁹ = 120128291 is a prime.

It is not a weakly prime, because it can be changed into another prime (120128807) 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, 60064401 + 60064402.

It is an arithmetic number, because the mean of its divisors is an integer number (60064402).

Almost surely, 2^120128803 is an apocalyptic number.

120128803 is a deficient number, since it is larger than the sum of its proper divisors (1).

120128803 is an equidigital number, since it uses as much as digits as its factorization.

120128803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 120128803 is about 10960.3285990886. The cubic root of 120128803 is about 493.4188270488.

Adding to 120128803 its reverse (308821021), we get a palindrome (428949824).

The spelling of 120128803 in words is "one hundred twenty million, one hundred twenty-eight thousand, eight hundred three".