203040427 has 2 divisors, whose sum is σ = 203040428. Its totient is φ = 203040426.

The previous prime is 203040419. The next prime is 203040433. The reversal of 203040427 is 724040302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 203040427 - 2³ = 203040419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203040398 and 203040407.

It is not a weakly prime, because it can be changed into another prime (203046427) 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 as a sum of consecutive naturals, namely, 101520213 + 101520214.

It is an arithmetic number, because the mean of its divisors is an integer number (101520214).

Almost surely, 2^203040427 is an apocalyptic number.

203040427 is a deficient number, since it is larger than the sum of its proper divisors (1).

203040427 is an equidigital number, since it uses as much as digits as its factorization.

203040427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 203040427 is about 14249.2254877239. The cubic root of 203040427 is about 587.7520772496.

Adding to 203040427 its reverse (724040302), we get a palindrome (927080729).

The spelling of 203040427 in words is "two hundred three million, forty thousand, four hundred twenty-seven".