120388819 has 2 divisors, whose sum is σ = 120388820. Its totient is φ = 120388818.

The previous prime is 120388799. The next prime is 120388843. The reversal of 120388819 is 918883021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120388819 - 2¹¹ = 120386771 is a prime.

It is a super-2 number, since 2×120388819² = 28986935480429522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (120388859) 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, 60194409 + 60194410.

It is an arithmetic number, because the mean of its divisors is an integer number (60194410).

Almost surely, 2^120388819 is an apocalyptic number.

120388819 is a deficient number, since it is larger than the sum of its proper divisors (1).

120388819 is an equidigital number, since it uses as much as digits as its factorization.

120388819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 40.

The square root of 120388819 is about 10972.1838756011. The cubic root of 120388819 is about 493.7745683657.

The spelling of 120388819 in words is "one hundred twenty million, three hundred eighty-eight thousand, eight hundred nineteen".