203040011 has 2 divisors, whose sum is σ = 203040012. Its totient is φ = 203040010.

The previous prime is 203040007. The next prime is 203040041. The reversal of 203040011 is 110040302.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 203040011 - 2² = 203040007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203039974 and 203040001.

It is not a weakly prime, because it can be changed into another prime (203040041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101520005 + 101520006.

It is an arithmetic number, because the mean of its divisors is an integer number (101520006).

Almost surely, 2^203040011 is an apocalyptic number.

203040011 is a deficient number, since it is larger than the sum of its proper divisors (1).

203040011 is an equidigital number, since it uses as much as digits as its factorization.

203040011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 203040011 is about 14249.2108904318. The cubic root of 203040011 is about 587.7516758434.

Adding to 203040011 its reverse (110040302), we get a palindrome (313080313).

The spelling of 203040011 in words is "two hundred three million, forty thousand, eleven".