120540203 has 4 divisors (see below), whose sum is σ = 137760240. Its totient is φ = 103320168.

The previous prime is 120540193. The next prime is 120540221. The reversal of 120540203 is 302045021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302045021 = 607 ⋅497603.

It is not a de Polignac number, because 120540203 - 2⁶ = 120540139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120540253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8610008 + ... + 8610021.

It is an arithmetic number, because the mean of its divisors is an integer number (34440060).

Almost surely, 2^120540203 is an apocalyptic number.

120540203 is a deficient number, since it is larger than the sum of its proper divisors (17220037).

120540203 is an equidigital number, since it uses as much as digits as its factorization.

120540203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17220036.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 120540203 is about 10979.0802438091. The cubic root of 120540203 is about 493.9814487616.

Adding to 120540203 its reverse (302045021), we get a palindrome (422585224).

The spelling of 120540203 in words is "one hundred twenty million, five hundred forty thousand, two hundred three".