203102030011 has 4 divisors (see below), whose sum is σ = 203210817112. Its totient is φ = 202993242912.

The previous prime is 203102029993. The next prime is 203102030023. The reversal of 203102030011 is 110030201302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 203102030011 - 2⁹ = 203102029499 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203102029973 and 203102030000.

It is not an unprimeable number, because it can be changed into a prime (203102039011) 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, 54390750 + ... + 54394483.

It is an arithmetic number, because the mean of its divisors is an integer number (50802704278).

Almost surely, 2^203102030011 is an apocalyptic number.

203102030011 is a deficient number, since it is larger than the sum of its proper divisors (108787101).

203102030011 is a wasteful number, since it uses less digits than its factorization.

203102030011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108787100.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 203102030011 its reverse (110030201302), we get a palindrome (313132231313).

The spelling of 203102030011 in words is "two hundred three billion, one hundred two million, thirty thousand, eleven".