120660403 has 2 divisors, whose sum is σ = 120660404. Its totient is φ = 120660402.

The previous prime is 120660391. The next prime is 120660437. The reversal of 120660403 is 304066021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120660403 - 2¹³ = 120652211 is a prime.

It is not a weakly prime, because it can be changed into another prime (120660443) 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, 60330201 + 60330202.

It is an arithmetic number, because the mean of its divisors is an integer number (60330202).

Almost surely, 2^120660403 is an apocalyptic number.

120660403 is a deficient number, since it is larger than the sum of its proper divisors (1).

120660403 is an equidigital number, since it uses as much as digits as its factorization.

120660403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 120660403 is about 10984.5529267240. The cubic root of 120660403 is about 494.1455899728.

The spelling of 120660403 in words is "one hundred twenty million, six hundred sixty thousand, four hundred three".