203402030011 has 4 divisors (see below), whose sum is σ = 203403389112. Its totient is φ = 203400670912.

The previous prime is 203402029997. The next prime is 203402030071. The reversal of 203402030011 is 110030204302.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110030204302 = 2 ⋅55015102151.

It is a cyclic number.

It is not a de Polignac number, because 203402030011 - 2⁵ = 203402029979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203402030071) 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, 422701 + ... + 765166.

It is an arithmetic number, because the mean of its divisors is an integer number (50850847278).

Almost surely, 2^203402030011 is an apocalyptic number.

203402030011 is a deficient number, since it is larger than the sum of its proper divisors (1359101).

203402030011 is a wasteful number, since it uses less digits than its factorization.

203402030011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359100.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 203402030011 its reverse (110030204302), we get a palindrome (313432234313).

The spelling of 203402030011 in words is "two hundred three billion, four hundred two million, thirty thousand, eleven".