120132403 has 4 divisors (see below), whose sum is σ = 120575968. Its totient is φ = 119688840.

The previous prime is 120132379. The next prime is 120132433. The reversal of 120132403 is 304231021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 304231021 = 19 ⋅16012159.

It is a cyclic number.

It is not a de Polignac number, because 120132403 - 2¹³ = 120124211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120132433) 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 in 3 ways as a sum of consecutive naturals, for example, 221376 + ... + 221917.

It is an arithmetic number, because the mean of its divisors is an integer number (30143992).

Almost surely, 2^120132403 is an apocalyptic number.

120132403 is a deficient number, since it is larger than the sum of its proper divisors (443565).

120132403 is an equidigital number, since it uses as much as digits as its factorization.

120132403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443564.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 120132403 is about 10960.4928265110. The cubic root of 120132403 is about 493.4237558973.

Adding to 120132403 its reverse (304231021), we get a palindrome (424363424).

The spelling of 120132403 in words is "one hundred twenty million, one hundred thirty-two thousand, four hundred three".