120403163 has 8 divisors (see below), whose sum is σ = 131598720. Its totient is φ = 109664640.

The previous prime is 120403147. The next prime is 120403187. The reversal of 120403163 is 361304021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120403163 - 2⁴ = 120403147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120403103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113708 + ... + 114761.

It is an arithmetic number, because the mean of its divisors is an integer number (16449840).

Almost surely, 2^120403163 is an apocalyptic number.

120403163 is a deficient number, since it is larger than the sum of its proper divisors (11195557).

120403163 is a wasteful number, since it uses less digits than its factorization.

120403163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228517.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 120403163 is about 10972.8375090493. The cubic root of 120403163 is about 493.7941782187.

Adding to 120403163 its reverse (361304021), we get a palindrome (481707184).

The spelling of 120403163 in words is "one hundred twenty million, four hundred three thousand, one hundred sixty-three".