203120056 has 16 divisors (see below), whose sum is σ = 381002400. Its totient is φ = 101519424.

The previous prime is 203120053. The next prime is 203120059. The reversal of 203120056 is 650021302.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (203120053) and next prime (203120059).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203120053) 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, 32860 + ... + 38548.

It is an arithmetic number, because the mean of its divisors is an integer number (23812650).

Almost surely, 2^203120056 is an apocalyptic number.

It is an amenable number.

203120056 is a deficient number, since it is larger than the sum of its proper divisors (177882344).

203120056 is a wasteful number, since it uses less digits than its factorization.

203120056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10158 (or 10154 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 203120056 is about 14252.0193656899. The cubic root of 203120056 is about 587.8289026613.

Adding to 203120056 its reverse (650021302), we get a palindrome (853141358).

The spelling of 203120056 in words is "two hundred three million, one hundred twenty thousand, fifty-six".