203120401 has 12 divisors (see below), whose sum is σ = 230470912. Its totient is φ = 178695000.

The previous prime is 203120381. The next prime is 203120413. The reversal of 203120401 is 104021302.

203120401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 203120401 - 2²⁵ = 169565969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203120441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23325 + ... + 30826.

Almost surely, 2^203120401 is an apocalyptic number.

It is an amenable number.

203120401 is a deficient number, since it is larger than the sum of its proper divisors (27350511).

203120401 is a wasteful number, since it uses less digits than its factorization.

203120401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54204 (or 54193 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 203120401 is about 14252.0314692327. The cubic root of 203120401 is about 587.8292354708.

Adding to 203120401 its reverse (104021302), we get a palindrome (307141703).

Subtracting from 203120401 its reverse (104021302), we obtain a palindrome (99099099).

The spelling of 203120401 in words is "two hundred three million, one hundred twenty thousand, four hundred one".