120655603 has 2 divisors, whose sum is σ = 120655604. Its totient is φ = 120655602.

The previous prime is 120655597. The next prime is 120655679. The reversal of 120655603 is 306556021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120655603 - 2⁵ = 120655571 is a prime.

It is not a weakly prime, because it can be changed into another prime (120655903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60327801 + 60327802.

It is an arithmetic number, because the mean of its divisors is an integer number (60327802).

Almost surely, 2^120655603 is an apocalyptic number.

120655603 is a deficient number, since it is larger than the sum of its proper divisors (1).

120655603 is an equidigital number, since it uses as much as digits as its factorization.

120655603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 120655603 is about 10984.3344359137. The cubic root of 120655603 is about 494.1390373390.

The spelling of 120655603 in words is "one hundred twenty million, six hundred fifty-five thousand, six hundred three".