120203455 has 4 divisors (see below), whose sum is σ = 144244152. Its totient is φ = 96162760.

The previous prime is 120203453. The next prime is 120203471. The reversal of 120203455 is 554302021.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 120203455 - 2¹ = 120203453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120203453) 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, 12020341 + ... + 12020350.

It is an arithmetic number, because the mean of its divisors is an integer number (36061038).

Almost surely, 2^120203455 is an apocalyptic number.

120203455 is a deficient number, since it is larger than the sum of its proper divisors (24040697).

120203455 is an equidigital number, since it uses as much as digits as its factorization.

120203455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24040696.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 120203455 is about 10963.7336250020. The cubic root of 120203455 is about 493.5210147947.

Adding to 120203455 its reverse (554302021), we get a palindrome (674505476).

The spelling of 120203455 in words is "one hundred twenty million, two hundred three thousand, four hundred fifty-five".